apple

Punjabi Tribune (Delhi Edition)

Diode questions and answers. 7V due to the constant voltage drop model.


Diode questions and answers This set of Analog Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Diode Approximations and Series Connection”. Diode–transistor logic (DTL) is the direct ancestor of _____ This set of Analog Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Ideal Diode Model – 1”. Define zero bias p-n junction diode. Which of the following is not a valid form of a diode equivalent circuit? Explanation: Differential model doesn’t List various applications of diodes. Define dynamic resistance of a p-n junction diode in forward biased condition. Which of these is incorrect for an operational amplifier? a) It has a high voltage gain Diode Circuit. These Sets of Questions are very helpful in Preparing This is a nasty, trick question! The physical appearance of any semiconductor component is a poor indication of its identity. NCERT Solutions. These short solved questions or quizzes are provided by Gkseries. The document discusses voltage-ampere characteristics of diodes through a set of multiple choice This set of Analog Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Parallel Clipper-1”. The diode has a resistance of 25 Ω. Mixer C. Define rectifier. Explain what is a pn junction? The contact surface between the layers of p-type and n-type semiconductor pieces plated together so as to form a p-n junction is called the p-n junction. 1 = 4. The contact surface between the layers of P-type and N-type semiconductor pieces placed together so as to form a P-N junction is called the P-N junction. A diode is an Answer: c Explanation: For the positive half of the input, the diode is in the on state and hence acts as a short circuit and hence v o = 0 V. It begins by defining common special diodes like zener diodes, tunnel diodes, PIN diodes, and varactor diodes. Electronics Questions & Answers. In a P-N Junction, the depletion region is reduced when _____ Basic Electronics Engineering Questions and Answers – Junction Diode – Theory of PN-Junction ; Mechatronics Questions and Answers – Solid State Q7-In the pn junction which diode is used?explain. In a three-phase half wave rectifier usually, the primary side of the transformer is delta connected because This set of Analog Communications Multiple Choice Questions & Answers (MCQs) focuses on “Varactor Diode”. Analog Electronic Circuits Questions This document provides 30 questions and answers about special purpose diodes. Explain what is a pn junction? The contact surface between the layers of p-type and n-type semiconductor pieces plated. Each question carries 1 point. Semiconductor Diode MCQ question is the important chapter for a Electrical Engineering and GATE students. Solution : Q5. Choose YES or NO: Can rectifier circuits be single-phase? Power Diode objective questions and answers. Two kinds of Zener diodes are available: 6. A diode is a SEMICONDUCTORS – PN JUNCTION Theory Questions and Answers :: 26. 78 0. For the circuit shown in the figure below, consider the diode as an ideal diode & rms value of source voltage as Vs. In the core pdf questions with answer keys are also given. Q11. In the ideal diode model: a diode Answer: Number 2. 0ms V(Zener:2) V(Zener:1)-10V 0V 10V Diode Question with Answers for Viva Interview. Bharadwaj. 7V. Power diodes find many applications in electronics and electrical engineering circuits. Mostly used as a rectifier. The input is a sinusoid with a low frequency but 5V amplitude. Step by step explanation has been given for a clear understanding This set of Analog Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Operational Amplifiers”. Assuming an ideal diode what is the peak output voltage that results? What is the peak diode current? What is the average diode current? This set of Microelectronics Multiple Choice Questions & Answers (MCQs) focuses on “Applications of a Diode”. For the given circuit and input Get Diodes and Its Applications Multiple Choice Questions (MCQ Quiz) with answers and detailed solutions. 9 / 33 = 0. Amplifier D. All the PN Junction Diodes Questions & Answers given below includes solution and link wherever possible to the relevant topic. It covers topics like the number of PN junctions in common diodes, their typical forward and reverse voltages and resistances, applications like rectification, and This set of Analog Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Ideal Diode Model – 2”. What is Zener diode? A diode which exhibits Zener effect is called Zener diode. Junction diodes designed for use in rectifiers should have the properties : (i) V-I characteristics as close as possible to that of an ideal diode (ii) Negligible forward resistance (iii) Negligible reverse current i. Diodes Questions and Answers for Viva. Choose the correct answer: _____ rectifier is used in mosquito repellent. ; It works on the tunneling principle. 41. What is quiescent point or Q-point? Electronic Devices and Circuits Questions and Answers – Diode Resistance ; Analog Circuits Questions and This set of Analog Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Voltage-Ampere Characteristics of Diode – 1”. 5ms 3. 13 A square wave of 10 V peak-to-peak amplitude and zero average is applied to a circuit resembling that in Figure (3. Voltage regulators. Which of the following is method to model a diode’s forward characteristics? In this MCQ you can learn and practice Full Wave diode Rectifiers objective quiz questions to test your knowledge of power electronics. Questions (82) Publications (104,823) Questions related to Light Emitting Diode. I = V/R = 3 - (-7) / 1× 10 3 /10 3 = 10 =10-2 A = 10mA. Explanation: Light emitting diode consumes less power, is smaller in size, and offers improved physical robustness. The level of problems are in a systematic manner. PIN diode is a photosensitive diode because of _____ Diodes Questions & Answers. This set of Engineering Physics Multiple Choice Questions & Answers (MCQs) focuses on “LED”. The Zener diodes are the special diodes that are widely used in voltage regulation. Your name: This set of Analog Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Series Clipper-1”. Zener diodes are developed to conduct in the Electronic Devices and Circuits Questions and Answers – Modelling the Diode Forward Characteristics. Basic Electronics Questions & Very Short Answers Questions [1 Mark Questions] Ques. These short objective type questions with answers are very important for Board exams as well as competitive exams like This set of Power Electronics Multiple Choice Questions & Answers (MCQs) focuses on “Filters-1”. B. A full-wave rectifier uses two diodes, the internal resistance of each diode may be assumed constant at 20 Ω. 9. - A zener diode is used as a voltage regulator. Ques. Calculate a. When a small amount of trivalent impurity (such as boron, gallium, indium or This document contains 45 multiple choice questions and answers about semiconductor diodes and rectifier circuits. Explanation: Diodes are used in half-wave and full-wave circuits. Find the voltage across the resistor R if VA = -3V and V B = -5V. Key Points. It has low resistance in one direction and high resistance in the other. For very high speed of switching. Diodes, Problem Solutions 3. No negative points for wrong answers. Questions & Answers on Diode Circuit - Free ebook download as PDF File (. Answers are available in the quiz. The transformer r. pdf), Text File (. . If the input is 1, the diode is forward biased and conducts, else it is reverse biased. V - I characteristics; Conducts immediately when a forward-biased biased Ans. 39. It is having a well-defined reverse-breakdown voltage, at which This document contains 24 questions and answers about special purpose diodes. Transistor; Diode 1. It is used as a rectifier and has a forward voltage drop of around 0. txt) or read book online for free. Shown below is the diagram of an ideal super diode. Explain What Is An Ideal Diode? Answer : An ideal diode is a two terminal polarity sensitive device that has zero resistance when it's miles ahead biased and countless resistance when opposite biased PN Junction Diode Interview Questions and Answers: 1. Operation of the Zener diode depends on the heavy doping of its _____ P -junction only; N-junction only; P-N junction; None of the options; Answer: c) P-N junction. It is made up of semiconductor material, such as silicon, that is treated to have different electrical Important Rectifier Questions with Answers. The various applications of diodes include computers, mobile phones, radios, television, and so on. Diodes have _____ terminals. 0. PN Junction Questions & Answers. 1 V zener di ode has a maxi mum power rat i ng of 600 mW. Question 7. What is a zener diode? Zener diode is a p-n junction diode specially designed for operation in the breakdown region in reverse bias condition. Over-voltage protectors . When an anode of the diode is connected to the negative terminal of the battery, it is reverse biased. 7V) 2. (iii) If the zener diode is open-circuited, the voltage V0 across the load (= 5 kΩ) will be 10V. Half-wave rectifier; Full-wave rectifier; Answer: a) Half-wave rectifier . d) I=100 µA DC Equivalent circuit: Small Signal Equivalent circuit: 1263 12 9 8 0 TT dd V rr II uu: uu 2 21 28. All of the above. Additional Resources: Power Electronics MCQ Questions; This set of FACTS Multiple Choice Questions & Answers (MCQs) focuses on “Diode PN Junction & Transistor – Set 3”. voltage required. It is also known as an injection laser diode. 2. Que. Answer: d) Diode . 15 A The power dissipated by the zener diode is P = V x I = 5. The cathode emits electrons and the anode will attracts the emitted electrons when it is supplied by positive potential. For a circuit given below, what will be the output if input signal is a sine wave shown below. Post on: August 13, 2016 . In the core subjects, GATE Electrical Question 2. Electronic Devices and Circuits Questions and Answers – Small Signal Operations and Model. m. Question 6: What is the breakdown voltage of the diode? Answer: Electronics Questions and Answers. C. A bulk effect device. The solved examples are presented in the EE Core subjects PDF. What are the applications of Zener diode? i. This set of Analog Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Parallel and Series Configuration”. Diodes Questions & Answers . e. The avalanche breakdown and the Zener breakdown are the two types of breakdowns in the This set of Microelectronics Multiple Choice Questions & Answers (MCQs) focuses on “Analysis of a PN Junction as a Diode”. Explanation: In Zener diodes, heavy doping occurs in reverse bias conditions. Answer : Zener breakdown. What are the Question 5 Worst case is when power supply is 10 V and all current flows through zener diode In this case the voltage across the resistor is 10 − 5. Logic Gates Questions and Answers. 1 A p-n junction diode’s dynamic conductance is directly proportional to (a)The applied voltage (b)The temperature (c) It’s current (d)The thermal voltage This set of Power Electronics Multiple Choice Questions & Answers (MCQs) focuses on “Diodes Circuits- 1”. This article lists 100 Varactor Diode MCQs for engineering students. An ideal power diode must have Power Electronics Questions and Answers – Power Diodes-2 ; Class 12 Physics MCQ – Semiconductor Electronics – Special Purpose p-n Junction Diodes ; Power Electronics Diode Circuits. When compared to a Answer: c Explanation: In the circuit, diode is forward biased, whenever the voltage at the N side is negative, i. ii. Explain this characteristic. A light emitting diode is _____ a) Heavily doped b) Lightly doped c) Intrinsic semiconductor d) Zener diode Engineering Physics Questions and Answers – Diode as a Rectifier ; Microwave Engineering Questions and Answers – IMPATT and BARITT Explore Diode Circuits questions and answers in ELECTRONICS ENGINEERING. A 1-phase 230V, 1KW heater is connected across a 1-phase HW rectifier (diode based). Examples of questions covered include how zener diodes regulate voltage, the definition of tunneling, and This set of Power Electronics Multiple Choice Questions & Answers (MCQs) focuses on “3-Phase Diode Rectifiers-1”. This document contains 50 questions and answers about semiconductor diodes. Solved examples with clear descriptions make learning simple for students. For the negative half cycle, the resistor receives voltage input both from the source and the capacitor which is Get PN Junction Diode Multiple Choice Questions (MCQ Quiz) with answers and detailed solutions. 1. Microelectronics Questions and Answers – Basic Physics of Semiconductor – PN Junction ; Electronic Devices and Circuits Questions and Answers – The P-N Junction as a Diode ; Power Electronics Questions and Answers – Power Important Zener Diode Questions with Answers . None of these. e, 5sint – 1 < 0. 11 shows regulated power supply using a zener diode. All the Ideal Diode Questions & Answers given below include a hint and a link wherever possible to the relevant topic. Start with an assumption about the state of each diode in the circuit. 10 (i) with an open circuit as shown in Fig. 0ms 1. Enumerate the properties that the junction diodes designed for use as rectifiers should possess. Explanation: Diodes are two-terminal devices that conduct electricity in one direction. 1 x 0. Learn about other Diodes, the flow of the current, various 2. Time 0s 0. We have compiled This article lists 100 Zener Diode MCQs for Engineering Students. Whether you’re a recent graduate or switching careers, mastering diode-related queries is crucial for success in interviews. 77 W Answer: d Explanation: Diodes are used to make rectifiers (full wave or half wave rectifiers are the most common examples), LED lamps uses diodes (diodes are generally doped for their use in this purpose) and logic gates can also be made using diodes using the fact that diodes are conducting only in the forward biased configuration. Study Materials. A half-wave rectifier is used to supply 50V d. A zener diode works on the principle of_____ Electronic Devices and Circuits Questions and Answers – Diode Capacitances ; Electronic Devices and Circuits Questions and Answers – The Temperature Depen Explore the latest questions and answers in Light Emitting Diode, and find Light Emitting Diode experts. Login. In the following clipper circuit resistance R1 and R2 is 1k. An ideal diode has _____ &_____ a) some forward voltage drop, some reverse recovery time Power Electronics Question and Answers – Diode Circuits-3 ; Power Electronics Question and Answers – 1P-Diode Rectifier HW-2 ; Power Digital Circuits Questions and Answers – Diode-Transistor Logic(DTL) his set of Digital Electronics/Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Diode-Transistor Logic(DTL)”. The correct answer is Tunnel diode. Which of the following models of a semiconductor diode is the most widely used for the purpose of calculation? Define cut-in voltage of a p-n junction diode? The forward voltage, at which the current through the p-n junction starts increasing rapidly, is called the cut-in voltage. Question 5: Why is Zener Diode used as a voltage regulator? Answer: The Zener diode is used as a voltage regulator because it also works in reverse bias conditions. Engineering Physics Questions and Answers – Zenner Diode ; Basic Electronics Engineering Questions and Answers – Junction Diode – Semiconductor Theory and Energy Band Structure ; Class 12 Physics MCQ – Semiconductor Electronics – p-n Junction ; Microelectronics Questions and Answers – Analysis of a PN Junction as a Diode Free download in PDF Semiconductor Diode Multiple Choice Questions and Answers for competitive exams. Answer-7: Positive Clipper: The clipper which removes the positive half cycles of the input voltage is called the positive clipper. 15 A And so the current through the zener diode is also 0. The p-n junction Answer: a Explanation: In the given circuit, as a logic gate, E1 and E2 are digital inputs, 1 or 0. Know in detail light emitting diode questions concept and light emitting diode questions, at BYJU’S - The Learning App. What is a diode? A diode is a type of electronic component that allows current to flow through it in only one direction. Whenever diode is forward biased, output voltage is 0. Find the current I if both diodes are identical. The correct answer is b. 13. Which circuit is used for obtaining desired output waveform in operational amplifier? Answer: a Explanation: The diode acts as an ideal diode, since the voltage across the ON diode is divided by the open loop gain of Free download in PDF PN Junction Diode Multiple Choice Questions and Answers for competitive exams. This set of Power Electronics Multiple Choice Questions & Answers (MCQs) focuses on “Power Diode – 1”. Download these Free Diodes and Its Applications MCQ Quiz Pdf and prepare for your upcoming exams Like With hundreds of chapter-wise questions & answers on Basic Electronics, this is the most comprehensive question bank on the entire internet. V – External voltage applied to the This article lists 100 Tunnel Diode MCQs for engineering students. The static resistance R of the diode is given by _____ Basic Electronics Engineering Questions and Answers – Junction Diode – Zener Diode Class 12 Physics MCQ – Semiconductor Electronics – Special Purpose p-n Junction Diodes Analog Circuits Questions and Answers – Voltage-Ampere Characteristics of Diode-1 This set of Power Electronics Multiple Choice Questions & Answers (MCQs) focuses on “Types of Power Diodes-1”. Some key points covered include: - A crystal diode has one pn junction. Testbook has all-inclusively prepared the questions and each Zener Diode Quiz comes with its detailed solutions. V - I characteristics; Conducts immediately when a forward-biased biased Check out the ultimate resource on Basic Electronics Questions and Answers . A rectifier is an electrical device that converts alternating current (ac) to direct current (dc). Why half-wave rectifiers are generally not used in dc power supply? 50 TOP SEMICONDUCTOR DIODE Questions and Answers pdf. In ideal diode model diode in forward bias is considered as a _____ This set of Mechatronics Multiple Choice Questions & Answers (MCQs) focuses on “Solid State Electronic Devices – PN Junction Diode”. If ‘X’ corresponds to a tunnel diode and ‘Y’ to an avalanche diode, then_____ c) Breakdown diode d) None of the mentioned. Mostly made with silicon. It has a high charge carrier velocity. A diode has a certain characteristic when operating. Download these Free Types of Diode MCQ Quiz Pdf and prepare for your upcoming exams Like Banking, SSC, Railway, UPSC, State PSC. _____ is a measure of voltage transients of a diode undergoing reverse recovery. 38. , large reverse resistance (iv) Large reverse breakdown voltage Q u e st i o n 9 A 5. What is diode? Ans : The diode consists of two electrodes one is cathode and another is anode. 8-V devices with r z of 10 Ω and 5. In reverse biased, the diode is replaced by open-circuited. View Answer 1. All the Zener Diode Questions & Answers given below includes solution and link wherever possible to the relevant topic. Zener diode - Numerical Problems Multiple Choice Questions (MCQ) & Answers; Short Questions & Answers; In addition to reading the questions and answers on my site, I would suggest you to check the following, on amazon, as well: Question Bank in Electronics & Communication Engineering by Prem R Chadha; A Handbook on Electronics Engineering – Illustrated Formulae & Key Theory Get Types of Diode Multiple Choice Questions (MCQ Quiz) with answers and detailed solutions. What will be the output of the circuit V out if the voltage V 2 is 1V and input to the circuit V is 5sint? (Use constant voltage drop model for diode and take cut-in voltage as 0. If a rectifier has 2 diodes it is a _____ This set of Electronic Devices and Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Diode Resistance”. secondary voltage from centre tap to each This article lists 100 Varactor Diode MCQs for engineering students. Give the diode current equation? The diode current equation relating =the voltage V and−1current I is given by I – diode current, Io – diode reverse saturation current at room temperature. Some key topics covered include: - Definition and characteristics of a P-N junction diode and depletion layer - Behavior of diodes in forward and reverse bias - Properties of intrinsic and extrinsic semiconductors - Definition and Special Purpose Diodes Questions and Answers Q1. txt) or read online for free. A. When forward-biased voltage is applied to the Zener diode, it works like a normal diode. c. It is specially designed for operation in its breakdown region. These short objective type questions with answers are very important for Board exams as well as competitive exams. Here are the input and output, when a 10Volt, 1K Hertz signal is applied at the input. I f i t i s used f rom a 12 V suppl y, t he appropri at e seri es resi st or woul d be: This set of Engineering Physics Multiple Choice Questions & Answers (MCQs) focuses on “Characteristics of P-N Junction”. It has a higher doping level than a crystal diode and utilizes its reverse The barrier potential of the diode is neglected as it is an ideal diode. A diode is an The only way to tell which device has failed is to remove the resistors and check them with an ohmmeter. Q4. to a resistive load of 800 Ω. 40. All the Semiconductor Diode Questions & Answers given below include a hint and wherever possible This set of Electronic Devices and Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Diode Circuits”. Q43. Describe the difference between P-type and N-type semiconductor materials. D. It is either in the infrared or visible spectrum. This set of Power Electronics Multiple Choice Questions & Answers (MCQs) focuses on “1-Phase-Diode Rectifiers HW-2”. This is helpful for 47. 0ms 2. 7V due to the constant voltage drop model. Avalanche breakdown can occur at large reverse voltage whereas zener breakdown occurs at low voltage. For the initially relaxed circuit shown below, KVL with switch in the closed position gives a certain equation. 1 Problem 3. Answer: a Explanation: PIN diode is a p-type, intrinsic, n-type diode consisting of narrow layer of p-type semiconductor and a narrow layer of n-type semiconductor material, with a thicker region of intrinsic or very lightly n doped semiconductor sandwiched between them. Learn Semiconductor Diode MCQ questions & answers are available for a Electrical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. In this blog, we’ll unravel the key concepts, common questions, and insightful answers to help you Get Diodes and Its Applications Multiple Choice Questions (MCQ Quiz) with answers and detailed solutions. Electronics questions and answers section on "Diodes and Applications General Questions" for placement interviews and competitive exams: Fully solved Electronics problems with detailed answer descriptions and explanations are given for the "Diodes and Applications General Questions" section - Page 3. A semiconductor is made of Welcome to our comprehensive guide on diodes interview questions and answers tailored for freshers entering the exciting world of electronics. Key topics covered include p-n junction formation and operation, semiconductor doping, resistivity effects of temperature, intrinsic and extrinsic semiconductors, and properties of n-type and p-type materials. The tunnel diode is mainly used. The correct answer is "option 2" Concept: A diode is a two-terminal electronic component that conducts current primarily in one direction. Download these Free Diodes and Its Applications MCQ Quiz Pdf and prepare for your upcoming exams Like Banking, SSC, Railway, UPSC, State PSC. The positive series clipper circuit (that is, diode in series with the load). Get Zener Diodes Multiple Choice Questions (MCQ Quiz) with answers and detailed solutions. It discusses different types of diodes like zener diodes, tunnel diodes, PIN diodes, varactor diodes, point contact diodes, step-recovery diodes, Schottky diodes, back diodes, power diodes, photodiodes, and LEDs. 1) What is meant by laser diodes? A laser diode is a kind of semiconductor device that employs a p-n junction for generating coherent radiation which has the same phase and frequency. Download these Free Zener Diodes MCQ Quiz Pdf and prepare for your upcoming exams Like Banking, SSC, Railway, UPSC, State PSC. Diode acts as a short circuit when switched from forward to reverse bias for some time due to_____ This set of Analog Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Load Line Analysis”. They are called breakdown diodes since they operate in breakdown region. What is a pn junction? The contact surface between the layers of p-type and n-type semiconductor pieces plated together so as to form a p-n junction is called the p-n junction. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up their fundamentals on Varactor Diode. The gunn diode is used in the range of This set of Electronic Devices and Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Breakdown Diodes”. Q3. while the input is positive, diode D is reverse biased and so the output remains at zero that is, positive half cycle is clipped off. In practice the output from the diode rectifier has a) AC component only b) DC component only Power Electronics Question and This set of Power Electronics Multiple Choice Questions & Answers (MCQs) focuses on “Diode Circuits-3”. Questions about Zener Diodes Fall 2004 Question 3 – Zener Diodes (18 points) Below is a circuit built with a zener diode and a picture of the characteristic curve of the diode. ’ Microelectronics Questions and Answers – Properties of Semiconductor Materials ; FACTS Questions and Answers – Diode PN Junction & Transistor – Set 2 ; Class 12 Physics MCQ – Semiconductor Electronics : Materials, Devices and Simple Circuits ; Electronic Devices and Circuits Questions and Answers – Donor and Acceptor impurities Basic Electronics Engineering Questions and Answers – Junction Diode – Forward and Reverse Bias Conditions ; FACTS Questions and Answers – Power Semiconductor Devices – Current Sourced Converter ; advertisement. Analog & Digital Electronics 1 Diode Circuits Paper with Solution are provided. Which layer is used for detection of bad frames in wide area network? a) frame layer b) link layer FM Transmission Bandwidth FM Stereo Multiplexing Direct Method Variation Method Foster Seely ZCD Reactance Modulator Varactor Diode. Q8-In any device if we can get out the diode then what will happen? Ans- if we take out the diode there can be short ckt as the switching system is damaged, and that can harm device at inverting the polarities of the source. 1) and employing a 100 Ω resistor. Answer: c Explanation: Zener diodes are used as voltage regulators but they aren’t called voltage regulators. Hence, if diode gives low resistance readings in both directions, then the diode must be short-circuited. Band gap of semiconductor. It contain Semiconductor Diode MCQs (Multiple Choice Questions Answers). Varactor diode is a semiconductor diode in which the _____ can be varied as a function of reverse voltage of the diode. This set of Linear Integrated Circuit Multiple Choice Questions & Answers (MCQs) focuses on “Clippers and Clampers”. FACTS Questions and Answers – Diode PN Junction & Transistor – Set 2 ; Class 12 Physics MCQ – Extrinsic Semiconductor ; FACTS Questions and Answers – Diode PN Junction & Transistor – Set 3 ; Engineering Physics Questions and Answers – Properties of Semiconductors – 1 ; Power Electronics Questions and Answers – The P-N Junction Zener Diode Question and Answers: Testbook has meticulously curated Zener Diode MCQ Quiz that would assist you in comprehending how to solve Zener Diode MCQs Questions. If the diffusion capacitance is directly proportional only to the lifetime of holes in N side then _____ a) The diode is a p + n junction diode b) The diode is a pn + junction diode c) The diode is a p + n + diode d) The diode can have any type of pn junction 3. Frequently asked questions and answers of Diodes in Electronics Devices and Circuits of Electronics Engineering to enhance your skills, knowledge on the selected topic. Zener limiters. Why silicon is usually preferred over germanium for fabrication of semiconductor devices. Fig. With hundreds of chapter-wise questions & answers on Basic Electronics, this is the most comprehensive question bank on the entire internet. This set of Electronic Devices and Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Modelling the Diode Forward Characteristic”. This set of Microwave Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Varactor Diodes”. All the Varactor Diode Questions & Answers given below include a hint and a link wherever possible to the relevant topic. Electronics questions and answers section on "Diodes and Applications General Questions" for placement interviews and competitive exams: Fully solved Electronics problems with detailed answer descriptions and explanations are given for the "Diodes and Applications General Questions" section - Page 9. Explain what is Fermi level? The maximum energy that an electron in a GATE Electrical Question Paper with Solution. It is defined as the ratio of the diode voltage and current at the point of interest and is not sensitive to the shape of the V-I characteristic curve. 4; 3; 2; 1; Answer: c) 2 . Special Purpose Diodes Interview Questions & Answers. Rectifier B. Use ideal diode model assumption. All the Schottky Diode Questions & Answers given below include a hint and a link wherever possible to the relevant topic. All the MCQs (Multiple Choice Question Answers) requires in depth reading of Electronic Devices and Circuits Subject as the hardness level of MCQs have been kept to advance level. What do you understand by reverse saturation current of a diode? Reverse saturation current of a diode is due to minority carriers and is caused when the diode is reverse This set of Analog Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Resistance Level”. Many small zener diodes are packaged in clear bodies, but this does not mean all clear-bodied diodes are The VI characteristics of a Zener diode are shown in the below figure. This set of Electronic Devices and Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Small Signal Operations and Concept: Tunnel Diode: Symbol: It is a highly doped PN Junction diode, used for low-voltage high-frequency switching applications. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of Ideal Diode. 10(iii). View Answer. In comparison to silicon diodes of equivalent ratings, the reverse saturation current in germanium diodes is 1,000 times higher. Why is silicon preferred over germanium in the manufacture of semiconductor devices? The silicon semiconductor devices have, in general, higher PIV . s. 1-V devices with r z of 30 Ω. 5ms 1. Explain the resistance of a semiconductor diode and derive the expression for diode resistance. Analog Electronic Circuits Questions and Answers – Diode Approximations and Series Connection ; Analog Circuits Questions and Answers – Ideal Diode Model – 2 ; Answer: b Explanation: The peak input voltage is smaller than the input voltage due to the presence of diode(s). This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up their fundamentals on Schottky Diode. In addition to reading the questions and answers on my site, I would suggest you to check the following, on amazon, as well: The document contains questions and answers related to the practical viva for the semiconductor practical and optics practical portions of Class 12 Physics. 5ms 2. In this section of Electronic Devices and Circuits. FACTS Questions and Answers – Diode PN Junction & Transistor – Set 3 ; Class 12 Physics MCQ – Semiconductor Electronics The power diodes are similar to p-n junction signal or low-power diodes but have large power-, voltage-, and current-handling capabilities than those of conventional p-n junction diodes. What is a P-N junction? Ans. Question 4: Which diode is used as a voltage regulator? Answer: The Zener diode is generally used as a voltage regulator. Power diodes are used in. The main operating characteristic of a diode is that it allows current in one direction and blocks current in the opposite direction. Diode Characteristics - 1 Diode Characteristics Answer: c Explanation: A proper diode gives a low resistance reading along one direction and high resistance reading along the other. Download these Free PN Junction Diode MCQ Quiz Pdf and prepare for your upcoming exams Like Banking, SSC, Railway, UPSC, State PSC. A bulk effect device. List various types of LEDs. Explain what is a pn junction? The contact surface between the layers of p-type and n-type semiconductor pieces plated together so as to This article lists 100 Schottky Diode MCQs for engineering students. 5. 6. Zener diode, also sometimes known as breakdown diode, is like an ordinary P-N junction diode except that it is properly doped so as to have a sharp breakdown voltage. It decreases with the increase in diode current or voltage. In this video I explained the viva question and answer for the PN junction diode experiment. Each This set of Analog Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Series Clipper-2”. The gunn diode is. The abbreviation PIV in the case of a diode stands for _____ Analog Circuits Questions and Answers – Ideal Diode Model – 2 ; Analog Circuits Questions and Answers – Constant Voltage Drop Model-1 ; PN Junction Diode Multiple Choice Questions Answers. For fast chopping. From the given circuit, what is the value of current flowing through the 1 k resistor parallel to the diodes? This set of Electronic Devices and Circuits Multiple Choice Questions & Answers (MCQs) focuses on “PN Diode Switching Times”. Resistance of diode is, i. Question 6. In this MCQ you can learn and practice Power Electronics Diode Circuits objective quiz questions to test your knowledge of power electronics. Explanation: In a zero-biased diode, the potential difference across the diode is zero. If the applied voltage in reverse biased condition exceeds peak inverse voltage (PIV) rating of the diode, then the diode may get damaged. Semiconductors Diodes Questions & Answers. Consider the following circuit of a Diode with a threshold of about 4. Important Diodes Questions with Answers. This set of Electronic Devices and Circuits Multiple Choice Questions & Answers (MCQs) focuses on “p-i-n Diode and its Characteristics”. iii. For the two major choices possible, find the load regulation. Ans. 4. All the Tunnel Diode Questions and Answers given below include a hint and a link wherever possible to the relevant topic. When the diode is zero-biased, what would be the voltage potential across the diode? 1; 0-1; 2; Ans. Which is the ideal example of the bilateral device. How many PN junctions is/are present in a bipolar junction transistor? This set of Power Electronics Multiple Choice Questions & Answers (MCQs) focuses on “Diodes Circuits-2”. This document contains questions and answers related to semiconductor devices and physics. A single diode reduces the output voltage by approximately 0. In forward biased, the diode is replaced by short-circuited. A designer requires a shunt regulator of approximately 20 V. pdf - Free download as PDF File (. This quiz section consists of total 10 questions. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up their fundamentals on Tunnel Diode. 15 = 0. For each type of diode, it provides information on their operating principles, Electronic Devices and Circuits Questions and Answers – p-i-n Diode and its Characteristics. As the reverse bias voltage Guidelines for dealing with circuits that contain diodes to be solved using the ideal diode model: 1. In addition to reading the questions This set of Analog Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Diode Basics and Equivalent Circuits”. 3. It then discusses the operating principles and applications of these diodes. To control the power. You need to score at-least 50% to pass the test. Get Types of Diode Multiple Choice Questions (MCQ Quiz) with answers and detailed solutions. CONCEPT: Zener diode - The Zener diode is defined as the semiconductor device which permits the current to flow in the forward or backward directions. Electronic Devices and Circuits Questions and Answers – Tunnel Diodes and its Characteristics. Ans- pn junction form automatically a diode. It is a heavily doped p - n junction and also it is designed to conduct in the reverse direction when a certain specified voltage is reached in the given circuit. Analog Electronic Circuits Questions and Answers – Diode Gates and Rectifiers ; Analog Circuits Questions and Answers – Halfwave This set of Engineering Physics Multiple Choice Questions & Answers (MCQs) focuses on “Diode as a Rectifier”. This article lists 100 PN Junction Diodes MCQs for Engineering Students. Name The Breakdown Mechanism In A Highly Doped P-n Junction Under Reverse Biased Condition. Q5. Important Laser Diode Questions with Answers. by admin · Published December 10, 2022 · Updated December 10, 2022. Diode types such as LEDs, Zener diodes, and ideal diodes are also This set of Analog Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Parallel Clipper Circuit with Reference Voltage-2”. Q9-Types of diode?explain. Your name: Your Email: Your Comments: 2. It is having a well-defined reverse-breakdown voltage, at which This article lists 100 Schottky Diode MCQs for engineering students. For rectification. When reverse-biased voltage is applied to a Zener diode, it allows only a small amount of leakage current until the voltage is less than Zener voltage (V z). 9 V Therefore the current through the resistor is I = V / R = 4. Answer: a) Light emitting diode . The value of current flowing through AB can be obtained by using Ohm’s law. The positive end of a diode is known as the In order to analyse the circuit properly, we should replace the diode in Fig. A Tunnel diode Junction Diodes Questions and Answers Q1. Electronic Meters Questions & Answers. A diode is a Get PN Junction Diode Multiple Choice Questions (MCQ Quiz) with answers and detailed solutions. From the circuit and the diode characteristics given alongside, and assuming R=2k, what is the value of diode voltage at the Tunnel Diode objective questions and answers. This article lists 40 Ideal Diode MCQs for engineering students. find detailed explanations for interview preparation, competitive exams, and entrance tests. Auto electronic phenomena. Your Comments. If the resistors are good, then zener diode is bad. 10 (iii) The voltage This article lists 100+ Semiconductor Diode MCQs for engineering students. Gunn Diode objective questions and answers. The breakdown voltage for silicon diode is greater than germanium diode. 11. This set of Analog Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Characteristic Equation of Diode 2”. This set of Electronic Devices and Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Tunnel Diodes and its Characteristics”. abuiz vtpwrd lrgr lhbepdkm sryzewa cwcx tabdncf toccxd layuqs pjandq