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# DFCCIL EE/EC Analog Circuits QUIZ - 5

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Question 1

Match List -1 (Name of the circuit) with List-2 (Property or Characteristics of the circuit) and choose the correct option
List-1
A) Rectifier circuit
B) Colpitts oscillator
C) Pre-amplifier
D) Phase shift oscillator
List-2
1) Small signal amplifier
2) Non linear circuit
3) RC Oscillator
4) LC Oscillator

Options that match A B C D respectively are

Question 2

For an op-amp based standard RC phase shift oscillator, the frequency of oscillations is:

Question 3

The value of C required for sinusoidal oscillation of frequency 1 kHz in the circuit of fig is

Question 4

consider the 555 time configured in the astable mode (oscillation) is shown below. For this find the frequency of the output and duty cycle?

Question 5

If R1C1 <<R2C2, then the below op-amp circuit shows what type of filter characteristics (Assume all op-amps are ideal)

Question 6

A 555-timer is used as an astable multivibrator. The capacitor used is of 15 nF value. The value of resistors for a frequency of 20 kHz and a duty cycle of 0.8 for output voltage waveform are
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Jun 19ESE & GATE EC
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