Exam 10: Power Amplifiers

An amplifier whose input is typically a radio tuner or CD player and produces a larger output suitable for driving tone and volume controls is a

An amplifier can be described by their class of operation,by their interstage coupling,or by their frequency range.

A direct-coupled amplifier is sometimes referred to as

Class C operation means

In an amplifier the dc current is referred to as the

The input signal in a class C circuit is amplified to get a large output power with an efficiency approaching

When a transistor operates as class B,it clips off half a cycle.

Almost all class C amplifiers are linear audio amplifiers.

A power amplifier produces output power ranging from a few hundred milliwatts up to hundreds of watts.

When the ac load impedance of a tank circuit is maximum and purely resistive

An amplifier that is designed to work over a small range of frequencies is classified as ________.

Capacitive coupling and transformer coupling block dc voltage.

The type of amplifier coupling that uses inductive action is ________.

An amplifier circuit that uses two transistors with one conducting for half a cycle while the other is off,and vice versa is called

An amplifier that operates in the range of 20 Hz to 20 kHz is

The amplifier stage that precedes the output stage is referred to as the

With amplifier class C operation,the collector current flows for

Class A operation of an amplifier means that the collector flows for only half the cycle.

When a transistor circuit operates as a class B amplifier

There are only two amplifier classes,A and B. FALSE