Explore topic-wise MCQs in Electronic Devices.

This section includes 14 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.

A 35 mV signal is applied to the base of a properly biased transistor with an r' = 8 and R = 1 k. The output signal voltage at the collector is:

A. 3.5 V
B. 28.57 V
C. 4.375 mV
D. 4.375 V
Answer» E.
Discussion
2.

Refer to this figure. Determine the minimum value of V from the following that will saturate this transistor.

A. 13.21 V
B. 12.51 V
C. 0.7 V
D. 9.4 V
Answer» B. 12.51 V
Discussion
3.

Pis usually specified at 25°C. For higher temperatures, the value of P is greater.

A. True
B. False
Answer» C.
Discussion
4.

If maximum I and maximum V are applied to a BJT, maximum power dissipation will not be exceeded.

A. True
B. False
Answer» C.
Discussion
5.

= I/I

A. True
B. False
Answer» C.
Discussion
6.

A R/r

A. True
B. False
Answer» B. False
Discussion
7.

In this circuit = 100 and V = 8 V. The value of R that will produce saturation is:

A. 92 k
B. 9.1 M
C. 100 k
D. 150 k
Answer» B. 9.1 M
Discussion
8.

Refer to this figure. The value of = 100 and V = 8 V. Determine I.

A. 18 mA
B. 7.92 mA
C. 1.8 mA
D. 8
E. A
Answer» C. 1.8 mA
Discussion
9.

A BJT has an I of 50 A and a of 75; I is:

A. 375 mA
B. 37.5 mA
C. 3.75 mA
D. 0.375 mA
Answer» D. 0.375 mA
Discussion
10.

is the ratio of I to I.

A. True
B. False
Answer» C.
Discussion
11.

A certain transistor has I = 15 mA and I = 167 A; is:

A. 15
B. 167
C. 0.011
D. 90
Answer» E.
Discussion
12.

Refer to this figure. The value of V is:

A. 9.2 V
B. 9.9 V
C. –9.9 V
D. –9.2 V
Answer» E.
Discussion
13.

Refer to this figure. If V = 0.2 V, I is:

A. 0.05 mA
B. 2.085 mA
C. 1.065 mA
D. 7.4 mA
Answer» C. 1.065 mA
Discussion
14.

What is the ratio of I to I?

A. h
B. either
C. or h
D. , but not
Answer» E.
Discussion