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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 [Vi = 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 ____________.

Question 8

In the circuit shown below. Find Vin if the op-amp is ideal.

Question 9

The ideal op amp shown has V1 = 10 mV and V2 = 50 mV. Find Vout.

Question 10

The approximate transfer characteristic for the circuit shown below with an ideal operational amplifier and diode will be.

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Jul 14AE & JE Exams