GATE ECE Diode circuits PYQs & Answers

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Diode circuits

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Questions 1–10 of 13. Imported answers require independent review unless marked reviewed.

Topic practice 13 questionsPage 1 of 2

Consider the ideal diodes D1 and D2 as shown in the Figure with cut-in voltage

Volt and

in Volt. The maximum voltage (Volt) of the output

is ___. (rounded off to two decimal places)

Diagram for Electronics and Communication Engineering question 65

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All the diodes in the circuit given below are ideal. Which of the following plots is/are correct when

(in Volts) is swept from

Diagram for Electronics and Communication Engineering question 57

Your answerSelect all correct options. You can choose more than one.

Diagram for Electronics and Communication Engineering question 57 (figure 2)

Diagram for Electronics and Communication Engineering question 57 (figure 3)

Diagram for Electronics and Communication Engineering question 57 (figure 4)

Diagram for Electronics and Communication Engineering question 57 (figure 5)

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The diode in the circuit shown below is ideal. The input voltage (in Volts) is given by

, where time

is in seconds.

The time duration (in ms, rounded off to two decimal places) for which the diode is forward biased during one period of the input is __________.

Diagram for Electronics and Communication Engineering question 61

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In the circuit shown, the

step-down transformer and the diodes are ideal. The diodes have no voltage drop in forward biased condition. If the input voltage (in Volts) is

and the average value of load voltage

(in Volts) is

, the value of

is ______.

Diagram for Electronics and Communication Engineering question 23

Your answerChoose one option.

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As shown in the circuit given below, the initial voltage across the capacitor is 10 V, with the switch being open. The switch is then closed at

. The total energy dissipated in the ideal Zener diode (

V) after the switch is closed (in mJ, rounded off to three decimal places) is ________.

Diagram for Electronics and Communication Engineering question 35

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In the circuit shown below, D₁ and D₂ are silicon diodes with cut-in voltage of 0.7 V.

and

are input and output voltages in volts. The transfer characteristic is

Diagram for Electronics and Communication Engineering question 40

Your answerChoose one option.

Diagram for Electronics and Communication Engineering question 40 (figure 2)

Diagram for Electronics and Communication Engineering question 40 (figure 3)

Diagram for Electronics and Communication Engineering question 40 (figure 4)

Diagram for Electronics and Communication Engineering question 40 (figure 5)

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A circuit and the characteristics of the diode (D) in it are shown. The ratio of the minimum to the maximum small signal voltage gain

is ________ (rounded off to two decimal places).

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An asymmetrical period pulse train

of 10 V amplitude with on-time

and off-time

is applied to the circuit shown in the figure. The diode

is ideal.

The difference between the maximum voltage and minimum voltage of the output waveform

(in integer) is ________ V.

Diagram for Electronics and Communication Engineering question 43

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In the circuit shown below, all the components are ideal and the input voltage is sinusoidal. The magnitude of the steady-state output

(rounded off to two decimal places) is ______ V.

Diagram for Electronics and Communication Engineering question 17

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In the circuit shown,

is a square wave of period

with maximum and minimum values of 8 V and -10 V, respectively. Assume that the diode is ideal and

. The average value of

is ____ volts (rounded off to 1 decimal place).

Diagram for Electronics and Communication Engineering question 24

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GATE ECE Diode circuits PYQs

How to practice Diode circuits

Question 65

Question 57

Question 61

Question 23

Question 35

Question 40

Question 57

Question 43

Question 17

Question 24