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

This section includes 6 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.

A series resonant circuit has an inductor L = 10 mH. The resonant frequency w = 10^6 rad/s and bandwidth is BW = 103 rad/s. The value of R and C will be

A. 100 F, 10 ohm
B. 100 pF, 10 ohm
C. 100 pF, 10 Mega-ohm
D. 100 µF, 10 Meg-ohm
Answer» C. 100 pF, 10 Mega-ohm
Discussion
2.

For the RLC parallel resonant circuit when R = 8k, L = 40 mH and C = 0.25 F, the quality factor

A. Q is
B. 40
C. 20
D. 30
E. 10
Answer» C. 20
Discussion
3.

A parallel circuit has R = 1k ohm , C = 50 µF and L = 10mH. The quality factor at resonance is

A. 100
B. 90.86
C. 70.7
D. None of the above
Answer» D. None of the above
Discussion
4.

A parallel RLC circuit has R 1 k and C 1 F. The quality factor at resonance is 200. The value of inductor is

A. 35.4 H
B. 25 H
C. 17.7 H
D. 50 H
Answer» C. 17.7 H
Discussion
5.

A parallel resonant circuit has a midband admittance of 25 X 10(-3) S, quality factor of 80 and a resonant frequency of 200 krad s. What is the value of C?

A. 2 µF
B. 28.1 µF
C. 10 µF
D. 14.14 µF
Answer» D. 14.14 µF
Discussion
6.

A parallel resonant circuit has a midband admittance of 25 X 10(-3) S, quality factor of 80 and a resonant frequency of 200 krad s. What is the value of R (in ohm)?

A. 40
B. 56.57
C. 80
D. 28.28
Answer» B. 56.57
Discussion