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UPPCL EE :Analog Electronics Quiz 4

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Question 1

A voltage amplifier has an open loop gain of 120. If 10% negative feedback were introduced in the amplifier then an 13% change in loop gain would cause

Question 2

Closed loop current gain(in 10⁶)for an opamp to prevent distortion for an input of [V_i = 2 sin(100t) mV] having slew rate of 1.5 V/μsec will be?

Question 3

An opamp has the DC gain = and the cutoff frequency of 50 Hz. What will be the gain of the opamap at a frequency of 1000 Hz (1 kHz)?

Question 4

For the circuit shown. Calculate the voltage gain

Question 5

Which one of the following is correct for an ideal operational amplifier?

Question 6

Statement I : Voltage gain of op-amp decreases at high frequencies

Statement II : Its internal structure uses a capacitor

Question 7

An Op-Amp has an offset voltage of 1mV and is ideal in all other aspects . If this Op-Amp is used in the circuit shown in the below figure, the output voltage will be approximately ____________.