Explore topic-wise MCQs in Electronic Devices Circuits.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices Circuits knowledge and support exam preparation. Choose a topic below to get started.

1.

We use approximate hybrid models for transistors because they introduce less than 10% error.

A. True
B. False
Answer» B. False
Discussion
2.

What is the approximate hybrid parameter voltage gain of a CC amplifier?

A. 1 + hie × Ri
B. 1 – hie × Ri
C. 1 + hie / Ri
D. 1 – hie / Ri
Answer» E.
Discussion
3.

What is the approximate hybrid parameter input resistance of a CC amplifier?

A. hie – (1 + hfe) × RL
B. hie + (1 + hfe) × RL
C. hie – (1 + hfe) / RL
D. hie + (1 + hf
E. × RLb) hie + (1 + hfe) × RLc) hie – (1 + hfe) / RLd) hie + (1 + hfe) / RL
Answer» C. hie – (1 + hfe) / RL
Discussion
4.

What is the approximate hybrid parameter current gain of a CC amplifier?

A. 1 + hoe
B. 1 – hoe
C. 1 + hfe
D. 1 – hfe
Answer» D. 1 – hfe
Discussion
5.

What is the approximate hybrid parameter voltage gain of a CB amplifier?

A. hfe × RL / hie
B. -hfe × RL / hie
C. hfe × RL / hoe
D. -hfe × RL / hoe
Answer» B. -hfe × RL / hie
Discussion
6.

What is the approximate hybrid parameter input resistance of a CB amplifier?

A. hfe / 1 – hfe
B. hfe / 1 + hfe
C. hie / 1 – hfe
D. hie / 1 + hfe
Answer» E.
Discussion
7.

What is the approximate hybrid parameter current gain of a CB amplifier?

A. -hfe / 1 + hfe
B. -hfe / 1 – hfe
C. hfe / 1 + hfe
D. hfe / 1 – hfe
Answer» D. hfe / 1 – hfe
Discussion
8.

What is the approximate hybrid parameter voltage gain of a CE amplifier?

A. hfe × RL / hie
B. -hfe × RL / hie
C. hfe × RL / hoe
D. -hfe × RL / hoe
Answer» C. hfe × RL / hoe
Discussion
9.

What is the approximate hybrid parameter input resistance of a CE amplifier?

A. hoe
B. hib
C. hic
D. hie
Answer» E.
Discussion
10.

What is the approximate hybrid parameter current gain of a CE amplifier?

A. -hfe
B. hfe
C. -hfc
D. hfc
Answer» B. hfe
Discussion