Expt 3 - Study of OPAMP amplifiers

Expt 3 - Study of OPAMP amplifiers

Professional Development

10 Qs

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Expt 3 - Study of OPAMP amplifiers

Expt 3 - Study of OPAMP amplifiers

Assessment

Quiz

Education

Professional Development

Practice Problem

Hard

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MANDAR EnTC

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When a differential amplifier is operated single-ended,

The output is grounded

One input is grounded and signal is applied to the other

Both inputs are connected together

The output is not inverted

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The common-mode gain is ………..

Very high

Very low

Always unity

Unpredictable

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The output of a particular Op-amp increases 8V in 12μs. The slew rate is

90 V/μs

0.67 V/μs

1.5 V/μs

None of the above

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The input offset current equals the

Difference between two base currents

Average of two base current

Collector current divided by current gain

None of these

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

If ADM = 3500 and ACM = 0.35, the CMRR is

1225

10000

80 dB

Option 2 & 3

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The Op-amp can amplify

A.C. signals only

D.C. signals only

Both A.C. and D.C. signals

Neither D.C. nor A.C. signals

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A certain non-inverting amplifier has Ri of 1 kΩ and Rf of 100 kΩ. The closed-loop voltage gain is ………

100,000

1000

101

100

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