Explore topic-wise MCQs in Electronic Devices and Circuits.

This section includes 10 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.

We use CE short circuit current frequency response models to obtain approximate values.

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

What is the value of overall voltage gain in the CE short circuit current frequency response model while considering RS?

A. V<sub>B</sub> / V<sub>S</sub>
B. V<sub>C</sub> / V<sub>S</sub>
C. V<sub>B</sub> V<sub>S</sub>
D. V<sub>C</sub> V<sub>S</sub>
Answer» B. V<sub>C</sub> / V<sub>S</sub>
Discussion
3.

What is the value of overall current gain in the CE short circuit current frequency response model while considering RS?

A. A<sub>I</sub> I<sub>B</sub> / I<sub>S</sub>
B. A<sub>I</sub> I<sub>C</sub> / I<sub>S</sub>
C. A<sub>I</sub> I<sub>S</sub> / I<sub>C</sub>
D. A<sub>I</sub> I<sub>S</sub> / I<sub>B</sub>
Answer» B. A<sub>I</sub> I<sub>C</sub> / I<sub>S</sub>
Discussion
4.

What is the value power gain in the CE short circuit current frequency response model?

A. A<sub>V</sub> A<sub>I</sub>
B. A<sub>V</sub> + A<sub>I</sub>
C. A<sub>V</sub> A<sub>I</sub>
D. A<sub>V</sub> / A<sub>I</sub>
Answer» D. A<sub>V</sub> / A<sub>I</sub>
Discussion
5.

What is the value of output resistance in the CE short circuit current frequency response model?

A.
B. 0
C. h<sub>ic</sub>
D. h<sub>ie</sub>
Answer» B. 0
Discussion
6.

What is the magnitude of voltage generated at emitter circuit of a CE short circuit current frequency response model?

A. h<sub>re</sub> h<sub>fe</sub> / I<sub>b</sub> R<sub>L</sub>
B. h<sub>re</sub> h<sub>fe</sub> I<sub>b</sub> R<sub>L</sub>
C. h<sub>re</sub> h<sub>fe</sub> / I<sub>C</sub> R<sub>L</sub>
D. h<sub>re</sub> h<sub>fe</sub> I<sub>C</sub> R<sub>L</sub>
Answer» C. h<sub>re</sub> h<sub>fe</sub> / I<sub>C</sub> R<sub>L</sub>
Discussion
7.

What is the value of voltage gain in the CE short circuit current frequency response model?

A. h<sub>fe</sub> R<sub>L</sub> / h<sub>re</sub>
B. h<sub>fe</sub> R<sub>L</sub> / h<sub>re</sub>
C. h<sub>fe</sub> R<sub>L</sub> / h<sub>ie</sub>
D. h<sub>fe</sub> R<sub>L</sub> / h<sub>ie</sub>
Answer» E.
Discussion
8.

What is the value of current gain in the CE short circuit current frequency response model?

A. h<sub>fe</sub>
B. -h<sub>fe</sub>
C. h<sub>re</sub>
D. h<sub>re</sub>
Answer» C. h<sub>re</sub>
Discussion
9.

How do we calculate the value of IC in the CE short circuit current frequency response model?

A. I<sub>C</sub> = h<sub>re</sub> I<sub>B</sub>
B. I<sub>C</sub> = -h<sub>re</sub> I<sub>B</sub>
C. I<sub>C</sub> = h<sub>fe</sub> I<sub>B</sub>
D. I<sub>C</sub> = -h<sub>fe</sub> I<sub>B</sub>
Answer» D. I<sub>C</sub> = -h<sub>fe</sub> I<sub>B</sub>
Discussion
10.

What is the value of input resistance in the CE short circuit current frequency response model?

A. h<sub>oe</sub>
B. h<sub>ib</sub>
C. h<sub>ic</sub>
D. h<sub>ie</sub>
Answer» E.
Discussion