Frequency Response – 1 MCQ’s

Electronic Devices & Circuits Electronics & Communication Engineering

This set of Electronic Devices & Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Frequency Response – 1″.

1. The value of inductor is
a) 4.3 mH
b) 43 mH
c) 0.16 mH
d) 1.6 mH

2. The quality factor is
a) 22
b) 100
c) 48
d) 200

(Q.1-Q.3) A parallel resonant circuit has a resistance of 2k ohm and half power frequencies of 86 kHz and 90 kHz.
3. The value of capacitor is
a) 6 µF
b) 20 nF
c) 2 nF
d) 60 µF

(Q.4-Q.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.

4. The value of R (in ohm) is
a) 40
b) 56.57
c) 80
d) 28.28

5. 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

6. A series resonant circuit has L = 1 mH and C = 10 F. The required R (in ohm) for the BW = 15 9 . Hz is
a) 0.1
b) 0.2
c) 0.0159
d) 500

7. The value of C is
a) 2 µF
b) 28.1 µF
c) 10 µF
d) 14.14 µF

8. 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

9. For the RLC parallel resonant circuit when R = 8k, L = 40 mH and C = 0.25 F, the quality factor
Q is
a) 40
b) 20
c) 30
d) 10

10. 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

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