Electronics and Experimental Methods-Operational Amplifiers (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 1 - 4 of 7

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Question number: 1

» Electronics and Experimental Methods » Operational Amplifiers

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Appeared in Year: 2013

MCQ▾

Question

Consider the op – amp circuit shows in the figure.

An op – amp circuit diagram

An Op – Amp Circuit Diagram

If the input is a sinusoidal wave , then the amplitude of output is – (December)

Choices

Choice (4)Response

a.

5

b.

c.

d.

Question number: 2

» Electronics and Experimental Methods » Operational Amplifiers

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Appeared in Year: 2012

MCQ▾

Question

In the Op – amp circuit shown in the figure below, the input voltage is 1V. The value of the output is – (June)

An operational amplifier circuit

An Operational Amplifier Circuit

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 3

» Electronics and Experimental Methods » Operational Amplifiers

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Appeared in Year: 2014

MCQ▾

Question

An op-amp based voltage follower – (June)

Choices

Choice (4)Response

a.

Is useful for converting a high impedance source into a low impedance source

b.

Has infinitely high closed loop output impedance.

c.

Has infinitely high closed loop gain.

d.

Is useful for converting a low impedance source into a high impedance source.

Question number: 4

» Electronics and Experimental Methods » Operational Amplifiers

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Appeared in Year: 2014

MCQ▾

Question

Consider the amplifier circuit comprising of two

An amplifier circuit composed of two op – amps

An Amplifier Circuit Composed of Two Op – Amps

If the input ac signal has an impedance of , which of the following statements is true? (December)

Choices

Choice (4)Response

a.

is required in the circuit because the source impedance is much less than R

b.

is required in the circuit because the source impedance is much greater than r

c.

is required in the circuit if the output has to follow the phase of the input signal.

d.

can be eliminated from the circuit without affecting the overall gain

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