Explore topic-wise MCQs in Electronic Devices.

This section includes 21 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices knowledge and support exam preparation. Choose a topic below to get started.

1.

In a particular problem, which mode has the highest level of I?

A. Ideal
B. Approximate equivalent
C. Exact mode using characteristic curve
D. None of the above
Answer» B. Approximate equivalent
Discussion
2.

In this voltage multiplier, measuring from the top of the transformer winding will provide ________ multiples of V at the output, whereas measuring the output voltage from the bottom of the transformer will provide ________ multiples of the peak V.

A. odd, even
B. even, odd
C. odd, odd
D. even, even
Answer» B. even, odd
Discussion
3.

The PIV rating of the diodes in a full-wave rectifier must be larger than ________ V.

A. 0.318
B. 0.636
C. 2
D. 1
Answer» E.
Discussion
4.

Once the Zener diode is in the "on" state, V is always ________ V.

A. larger than
B. smaller than
C. the same as
D. None of the above
Answer» D. None of the above
Discussion
5.

The absence of the Si or Ge and V label on a diode denotes ________ notation.

A. approximate model
B. ideal model
C. exact model
D. None of the above
Answer» C. exact model
Discussion
6.

For the ideal diode the transition between states will occur at the point on the characteristic curve when V = ________ V and I = ________ A.

A. 0.3, 0
B. 0, 0
C. 0.7, 0
D. 0.7, 0.3
Answer» C. 0.7, 0
Discussion
7.

With the Zener diode in the "on" state, increasing I will ________ I and ________I.

A. decrease, increase
B. increase, decrease
C. decrease, keep the same level of
D. increase, keep the same level of
Answer» D. increase, keep the same level of
Discussion
8.

A diode is in the ________ state if the current established by the applied sources is such that its direction matches that of the arrow in the diode symbol and V > 0.7 V.

A. off
B. reverse bias
C. on
D. transition
Answer» D. transition
Discussion
9.

V is the same as PIV rating.

A. True
B. False
Answer» B. False
Discussion
10.

A diode is in the "________" state if the current established by the applied sources is such that its direction matches that of the arrow in the diode symbol, and V ≥ 0.7 V for Si and V ≥ 0.3 V for Ge.

A. off
B. on
C. neutral
D. quiescent
Answer» C. neutral
Discussion
11.

Determine V if E = E = 10 V.

A. 9.3 V
B. 10 V
C. –10 V
D. 0 V
Answer» C. –10 V
Discussion
12.

Calculate I and I.

A. 2 mA, 0 mA
B. 4 mA, 2 mA
C. 2 mA, 2 mA
D. 2 mA, 4 mA
Answer» E.
Discussion
13.

Use the information provided here to determine the value of I.

A. 0 mA
B. 4.3 mA
C. 5 mA
D. 10 mA
Answer» C. 5 mA
Discussion
14.

Determine the total discharge time for the capacitor in a clamper having C = 0.01 F and R = 500 k.

A. 5 ms
B. 25 ms
C. 2.5 ms
D. 50 ms
Answer» C. 2.5 ms
Discussion
15.

What is the voltage measured from the negative terminal of C to the negative terminal of the transformer?

A. –10 V
B. –20 V
C. 10 V
D. 20 V
Answer» C. 10 V
Discussion
16.

Determine the current through each diode if E = E = 0 V.

A. 4.65 mA
B. 9.3 mA
C. 18.6 mA
D. 0.7 mA
Answer» B. 9.3 mA
Discussion
17.

With this Zener diode in its "on state," what is the level of I for the maximum load resistance?

A. 0 mA
B. Undefined
C. Equal to I
D. I
Answer» E.
Discussion
18.

In a voltage regulator network with fixed R and R, what element dictates the minimum level of source voltage?

A. V
B. I
C. I
D. None of the above
Answer» B. I
Discussion
19.

Determine I.

A. 29.40 mA
B. 30.30 mA
C. 14.70 mA
D. None of the above
Answer» D. None of the above
Discussion
20.

Determine the current level if E = 15 V and R = 3 k.

A. 0 A
B. 4.76 mA
C. 5 mA
D. 5 A
Answer» C. 5 mA
Discussion
21.

What is the V (PIV rating) for the 1N4001 rectifier diode?

A. 50 V
B. 100 V
C. 200 V
D. 400 V
E. none of the above
Answer» B. 100 V
Discussion