Chapter 8: Operational Amplifier

Chapter 8: Operational Amplifier

University

10 Qs

quiz-placeholder

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Chapter 8: Operational Amplifier

Chapter 8: Operational Amplifier

Assessment

Quiz

Education

University

Practice Problem

Medium

Created by

Rahayu Tukimin

Used 2+ times

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the voltage gain of an ideal inverting amplifier?

1 + Rf / Rin

Rf / Rin

-Rf / Rin

-(Rin / Rf)

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a non-inverting amplifier, the input is applied to:

Inverting terminal

Non-inverting terminal

Both terminals

None of the above

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In an INVERTING amplifier, if the input signal is 2V and the feedback resistors are Rf = 10 kΩ and Rin = 5 kΩ, what is the output voltage?

-4V

-2V

2V

4V

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For an ideal op-amp, the input impedance of a non-inverting amplifier is:

0

Infinite

Equal to the feedback resistor

Equal to the input resistor

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In a summing amplifier with three inputs V1, V2, and V3, the output voltage is given by:

Vout = Rf (V1 + V2 + V3)

Vout = -(Rf/R1 V1 + Rf/R2 V2 + Rf/R3 V3)

Vout = (V1 + V2 + V3)/Rf

Vout = -V1 / Rf

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the function of a comparator circuit?

To amplify input signals

To compare two input voltages and output a high or low signal

To invert the input signal

To buffer the input signal

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a multistage amplifier, the total voltage gain is:

The sum of the voltage gains of each stage

The difference between the voltage gains of each stage

The product of the voltage gains of each stage

The voltage gain of the final stage

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