Explore topic-wise MCQs in Electronic Devices and Circuits Questions and Answers.

This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices and Circuits Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

An AM signal is represented by x(t) = (20 + 4sin(500πt)) cos(2πt x 105)V. What is the total sideband power?

A. 4 W
B. 8 W
C. 16 W
D. 2 W
Answer» B. 8 W
Discussion
2.

An AM signal is represented by x(t) = (20 + 4sin(500πt)) cos(2πt x 105)V. What is the total signal power?

A. 208 W
B. 204 W
C. 408 W
D. 416 W
Answer» C. 408 W
Discussion
3.

An AM signal is represented by x(t) = (20 + 4sin(500πt)) cos(2πt x 105)V. What is the modulation index?

A. 20
B. 4
C. 0.2
D. 10
Answer» D. 10
Discussion