Transistor Audio Power Amplifiers

This is an MCQ-based quiz on Transistor Audio Power Amplifiers.

This includes AF amplifiers, Detectors, and F. amplifiers,

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The class B push-pull circuit can deliver 100 W of a.c. output power. What should be the minimum power rating of each transistor?

20 W 40 W 10 W 80 W

The output stage of a multistage amplifier usually employs ___________

Push-pull amplifier Preamplifier Class A power amplifier None of the above

The disadvantage of impedance matching is that it ___________

Gives distorted output Gives low power output Requires a transformer None of the above

The maximum efficiency of resistance loaded class A power amplifier is

5% 50% 30% 25%

Which device was used for the amplification of audio signals before the invention of power amplifiers?

Diode Op-amp Vacuum tubes SCR

Unit of power rating of a transistor is expressed in ___________

Watts KWh W/s Wh

The output stage of a multistage amplifier is also called ……………

Mixer stage Power stage Detector stage F stage

___________ coupling is generally employed in power amplifiers

Transformer

Direct

Impedance

A class A power amplifier uses …………

Two transistors

Three transistors

One transistor

None of the above

Quiz/Test Summary

Title: Transistor Audio Power Amplifiers

Questions: 9

Contributed by:

Diego Mon, May 23, 2022 03:27 PM UTC

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