Explore topic-wise MCQs in Active Filter Circuits.

This section includes 59 Mcqs, each offering curated multiple-choice questions to sharpen your Active Filter Circuits knowledge and support exam preparation. Choose a topic below to get started.

51.

Class ________ amplifiers are normally operated in a push-pull configuration in order to produce an output that is a replica of the input.

A. A
B. B
C. C
D. AB
Answer» E.
Discussion
52.

What is the ratio of the secondary voltage to the primary voltage with the turn ratio in the windings?

A. N 2 /N 1
B. (N 1 /N 2 ) 2
C. (N 1 /N 2 ) 1/3
D. N 1 × N 2
Answer» B. (N 1 /N 2 ) 2
Discussion
53.

Refer to this figure. The dc voltage on the collector, V C , is

A. 5.4 V.
B. 6.6 V.
C. 12 V.
D. 0 V.
Answer» B. 6.6 V.
Discussion
54.

A silicon power transistor is operated with a heat sink ( SA = 1.5ºC/W). The transistor, rated at 150 W (25ºC), has JC = 0.5º C/W, and the mounting insulation has CS = 0.6 ºC/W. What is the maximum power that can be dissipated if the ambient temperature is 50ºC and T Jmax = 200 ºC?

A. 61.5 W
B. 60.0 W
C. 57.7 W
D. 55.5 W
Answer» D. 55.5 W
Discussion
55.

The principal advantage(s) of BJTs over MOSFETs is (are) that

A. voltage drop across the transistor is important.
B. they are not as prone to ESD.
C. both of the above
D. none of the above
Answer» D. none of the above
Discussion
56.

The main features of a large-signal amplifier is the circuit's ________.

A. power efficiency
B. maximum power limitations
C. impedance matching to the output device
D. All of the above
Answer» E.
Discussion
57.

Class B operation is provided when the dc bias leaves the transistor biased just off, the transistor turning on when the ac signal is applied.

A. True
B. False
C. -
D. -
Answer» B. False
Discussion
58.

Calculate V B2 .

A. 0 V
B. 0.7 V
C. 9.3 V
D. 10.7 V
Answer» D. 10.7 V
Discussion
59.

This is an example of the output swing for a class ________ amplifier.

A. A
B. B
C. AB
D. C
Answer» C. AB
Discussion