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# GATE EC 2022: Analog Quiz 8

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Question 1

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

Question 2

In the given oscillator circuit, find the values of C1 and C2 that would make the bridge balanced Question 3

The Hartley oscillator shown in figure. The mutual inductance between L1 and L2 is M = 20 μH, what is the value of frequency for oscillations (in KHz)? Question 4

Which type of oscillator circuit is shown in figure below? Question 5

A voltage Controlled oscillator is designed by using a varactor diode as shown in figure. Capacitance of diode is considered to be 0.5 μF. Calculate the frequency of oscillator in kHz? Question 6

An op-amp has an input resistance 1kΩ and output resistance of 2.5kΩ. Find the value of Rx for sustained oscillations

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