Electronic Devices and Circuits Questions and Answers – Frequency Response – 2

This set of Basic Electronic Devices and Circuits Questions and Answers focuses on “Frequency Response – 2”.

1. The maximum voltage across capacitor would be
The maximum voltage across capacitor is 3200 V in given circuit
a) 3200 V
b) 3 V
c) 3 V
d) 1600 V
View Answer

Answer: a
Explanation: Thevenin equivalent seen by L-C combination equation in given diagram

2. Find the resonnant frequency for the circuit.
Find the resonnant frequency for the circuit
a) 346 kHz
b) 55 kHz
c) 196 kHz
d) 286 kHz
View Answer

Answer: b
Explanation:The resonnant frequency for the circuit is 55 kHz

3. Determine the resonant frequency of the circuit.
The resonant frequency of the circuit is 2.05 MHz
a) 12 9 . kHz
b) 12.9 MHz
c) 2.05 MHz
d) 2.05 kHz
View Answer

Answer: c
Explanation:Resonant frequency of the circuit
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4. The value of C and A for the given network function is
Find the value of C & A for the given network function
a) 10 µF, 6
b) 5 µF, 10
c) 5 µF, 6
d) 10 µF, 10
View Answer

Answer: c
Explanation:The value of C & A for the given network function is 5 µF & 6

5. H(w) = Vo/Vi = ?
H(w) = Vo/Vi is 0.6 / jw(1 + 0.2jw) in given diagram
a) 0.6 / jw(1 + 0.2jw)
b) 0.6 / jw(5 + jw)
c) 3 / jw(1 + jw)
d) 3 / jw(20 + 4jw)
View Answer

Answer: a
Explanation: H(w) = Vo/Vi in given diagram

6. H(w) = Vo/Vi = ?
H(w) = Vo/Vi n is 1 / jw(5 + j20w) in given diagram
a) 1 / jw(5 + j20w)
b) 1 / jw(5 + j4w)
c) 1 / jw(5 + j30w)
d) 5 / jw(5 + j6w)
View Answer

Answer: a
Explanation: H(w) = Vo/Vi in given circuit diagram

7. The value of input frequency is required to cause a gain equal to 1.5. The value is
Find the value of input frequency required to cause a gain equal to 1.5
a) 20 rad/s
b) 20 Hz
c) 10 rad/s
d) No such value exists
View Answer

Answer: d
Explanation: Value is no such value if value of input frequency is required to cause gain equal to 1.5
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8. In the circuit shown phase shift equal to 45 degrees and is required at frequency w = 20 rad/s. The value of R (in kilo-ohm) is
Find value of R if phase shift equal to 45 degrees in given diagram
a) 200
b) 150
c) 100
d) 50
View Answer

Answer: d
Explanation: Value of R is 50 if phase shift equal to 45 degrees required at frequency w = 20 rad/s

9. For the circuit shown the input frequency is adjusted until the gain is equal to 0.6. The value of the frequency is
Find value of frequency in input frequency if adjusted until gain is equal to 0.6
a) 20 rad/s
b) 20 Hz
c) 40 rad/s
d) 40 Hz
View Answer

Answer: a
Explanation:Value of frequency is 20 rad/s if input frequency is adjusted until gain is equal to 0.6
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10. The bode diagram for the Vo/Vs for the given circuit is
Circuit diagram with 4 ohm & 2 ohm resistor for the Vo/Vs
a)
The bode diagram for the Vo/Vs for the given circuit - option a
b)
The bode diagram for the Vo/Vs for the given circuit - option b
c)
The bode diagram for the Vo/Vs for the given circuit - option c
d)
The bode diagram for the Vo/Vs for the given circuit - option d
View Answer

Answer: d
Explanation:
The Vo/Vs for the given circuit is D in given bode diagram

Sanfoundry Global Education & Learning Series – Electronic Devices and Circuits.

To practice basic questions and answers on all areas of Electronic Devices and Circuits, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

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Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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