Explore topic-wise MCQs in Electronic Devices and Circuits.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices and Circuits knowledge and support exam preparation. Choose a topic below to get started.

1.

An amplifier is measured to have an internal resistance of 10 k , voltage gain of 100V/V and output resistance of 100 . Also, when a load resistance of 1 k is connected between the output resistance if found to decrease to 8 k . If the amplifier is fed with the signal source having an internal resistance of 2 k . Find Ai.

A. 182 A/A
B. 364 A/A
C. 546 A/A
D. 728 A/A
Answer» E.
Discussion
2.

An amplifier is measured to have an internal resistance of 10 k , voltage gain of 100V/V and output resistance of 100 . Also, when a load resistance of 1 k is connected between the output resistance if found to decrease to 8 k . If the amplifier is fed with the signal source having an internal resistance of 2 k . Find R out.

A. 146
B. 292
C. 584
D. 1168
Answer» B. 292
Discussion
3.

An amplifier is measured to have an internal resistance of 10 k , voltage gain of 100V/V and output resistance of 100 . Also, when a load resistance of 1 k is connected between the output resistance if found to decrease to 8 k . If the amplifier is fed with the signal source having an internal resistance of 2 k . Find Gv.

A. 53.4 V/V
B. 72.7 V/V
C. 83.3 V/V
D. 90.9 V/V
Answer» C. 83.3 V/V
Discussion
4.

An amplifier is measured to have an internal resistance of 10 k , voltage gain of 100V/V and output resistance of 100 . Also, when a load resistance of 1 k is connected between the output resistance if found to decrease to 8 k . If the amplifier is fed with the signal source having an internal resistance of 2 k . Find Gvo.

A. 53.3 V/V
B. 63.3 V/V
C. 73.3 V/V
D. 83.3 V/V
Answer» E.
Discussion
5.

An amplifier is measured to have an internal resistance of 10 k , voltage gain of 100V/V and output resistance of 100 . Also, when a load resistance of 1 k is connected between the output resistance if found to decrease to 8 k . If the amplifier is fed with the signal source having an internal resistance of 2 k . Find Av.

A. 9.09 V/V
B. 10 V/V
C. 90.9 V/V
D. 100 V/V
Answer» D. 100 V/V
Discussion
6.

An amplifier is measured to have an internal resistance of 10 k , voltage gain of 100V/V and output resistance of 100 . Also, when a load resistance of 1 k is connected between the output resistance if found to decrease to 8 k . If the amplifier is fed with the signal source having an internal resistance of 2 k . Find Gm.

A. 1 A/V
B. 10 A/V
C. 100 A/V
D. 1000 A/V
Answer» B. 10 A/V
Discussion