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GATE 2022 : Analog Electronics Quiz 4
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Question 1
Consider the Colpitts oscillator circuit shown in figure below with parameters L = 1 μH, C1 = 1 nF, C2 = 1 nF, R = 4 kΩ. What is the oscillator frequency (in MHz, rounded upto 2 decimal values)?
Question 2
A 555 timer is configured to run in astable mode. Determine the duty cycle of the output.
Question 3
For 555 astable multivibrator, if C = 0.01 μF, RA = 10 kΩ, RB = 50 kΩ, the frequency and the duty cycle will be nearly
Question 4
The circuit shown is a sinusoidal oscillator. Find the value of resistor Rx (in kΩ) for sustained oscillations.
Question 5
Design the RC elements of a Wein bridge oscillator as in below figure for operation at f0 = 10 kHz
Question 6
Find the relation between R1 and R2 for sustained oscillations.
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Aug 6ESE & GATE EE