Trial Quiz

Trial Quiz

University

5 Qs

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Trial Quiz

Trial Quiz

Assessment

Quiz

Engineering

University

Practice Problem

Easy

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Korbla Kofi

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5 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which component is essential for impedance matching in transformer-coupled amplifiers?

Capacitor

Resistor

Transformer

Diode

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary function of a comparator?

To filter high-frequency noise

To compare two voltages and output a digital signal

To provide negative feedback

To act as an oscillator

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which class of amplifier is commonly used in audio applications due to its low distortion?

Class B

Class C

Class A

Class D

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main advantage of a Class D amplifier?

Low distortion

High efficiency (near 100% theoretically)

Simple design

Wide bandwidth

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of feedback stabilizes gain and reduces distortion in amplifiers?

Positive feedback

Negative feedback

Regenerative feedback

No feedback