Operational Amplifiers mcqs

Operational Amplifiers mcqs

 Op-Amp is abbreviation for ________.

 Operational Amplifier 

Operand amplitude 

Operational amplitude

 None of the above

Op-Amp is a ______ type of amplifier.

 Current 

Voltage

 Power 

Resistance

Op-Amp has ________ inputs.

Single

Similar

Zero

Differential

Op-Amp has ________ outputs.

Single

Similar

Multiple

Differential

Which of the following are the internal components of an op-amp?

FET

Transistors

Resistors

All the above

Op-Amp has ______ input type configuration.

2

3

4

5

Op-Amp with positive input type configuration is represented as _______.

+V

-V

V

Both a and c

An ideal Op-amp has _______ input voltage.

1V

3V

Grounded

Infinite

An ideal Op-amp has _______ output voltage.

1V

3V

Grounded

Infinite

Real-time Op-amps are ________ potentials.

AC

DC

Zero

Infinite

CMRR parameter stands for ________.

Common mode rejection ratio

Common medium rejection ratio

Common mode ratio of reference

None of the above

A feedback free instrumentation type amplifier has _____ input impedance.

High

Low

zero

Medium

Ideal Op-amp has _______ open loop gain.

zero

Infinite

Negative

Positive

Ideal Op-amp has ________ input impedance.

zero

Infinite

Negative

Positive

Trans resistance gain in op-amp is the ratio of _________.

Vin/Iout

Vout/Vin

Iin/Vout

Iout/ Iin

Ideal Op-amp has ________ input current.

zero

Infinite

Negative

Positive

 Ideal Op-amp has ________ bandwidth.

0

Infinite

Negative

Positive

741 Op-amp has _________ number of gain stages.

2

3

4

5

Which of the following are the 3 gain stages in Op-Amp?

Differential amplifier

Voltage amplifier

Output amplifier

All the above

 Op-Amps open loop gain ________ when frequency increases.

Increases

Decreases

Falls rapidly

Become zero

 A real Op-amp has ________ output impedance.

High

Low

zero

Infinity

 Which factor determine the output voltage of an op-amp?

Positive saturation

Negative saturation

Both positive and negative saturation voltage

Supply voltage

Which of the following are the applications of an op-amp?

Voltage followers

Selective inversion circuit

Current to voltage converter

All the above

Op-Amp 741 IC has _________ number of pins.

7

8

5

6

Open loop op-amp configuration has

Direct network between output and input terminals

No connection between output and feedback network

No connection between input and feedback network

All of the mentioned

In which configuration does the op-amp function as a high gain amplifier?

Differential amplifier

Inverting amplifier

Non-inverting amplifier

All of the mentioned

OP-Amp 741 IC third pin specifies ________.

Offset null

-V

+V

-Vcc

A current gain in op-amp is the ratio of _______.

Vin/Vout

Vout/Vin

Iin/Iout

Iout/ Iin

Transconductance gain in op-amp is the ratio of ________.

Vin/Iout

Vout/Vin

Iin/Iout

Iout/ Iin

Generally, an op-amp is a _________ stage amplifier.

Single

Double

Multi

Zero

Op-Amp is available in the form of ________ package.

IC

Kit

Device

All the above

The voltage output of an ideal op-amp is _________.

Vout= AOL(V1-V2)

Vout= (V1-V2)

Vout= AOL

Vout= AOL(V1)

Op-Amp differential input is represented as ________.

V1+V2

V1 – V2

I1+I2

I-V

Op-Amp with positive feedback acts as ________.

Oscillator

Amplifier

Rectifier

Clipper

Op-Amp with negative feedback acts as ________.

Oscillator

Amplifier

Rectifier

Clipper

Which of the following electrical characteristics is not exhibited by an ideal op-amp?

Infinite voltage gain

Infinite bandwidth

Infinite output resistance

Infinite slew rate

How will be the output voltage obtained for an ideal op-amp?

Amplifies the difference between the two input voltages

Amplifies individual voltages input voltages

Amplifies products of two input voltage

None of the mentioned

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Operational Amplifiers mcqs
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