Transistor as Amplifier

The input and output signals of a common emitter

amplifier are

• in phase

• 90 degree out of phase

• 180 degree out of phase

• 270 degree out of phase

If the transistor operates such that it is either in the saturation or cut-off region, it is operating as

• a filter

• a switch

• a signal amplifier

• an emitter follower

Which one of the following amplifier circuits provides a phase inversion between the input and output signal?

• Common Base

• Common source

• Common collector

• Common emitter

What are the names of the terminals X, Y and Z?

• X = Base, Y = Collector, Z = Emitter

• X = Emitter, Y = Base, Z = Collector

• X = Collector, Y = Base, Z = Emitter

• X = Collector, Y = Emitter, Z = Base

One function of the transistor is to_____________?

• rectify

• amplify

• limit

• control

What is the type of the transistor shown?

• PNP

• NPN

• BJT

What is emitter current Ie of transistor that its Ic=100mA and Ib=100uA?

• 100.1 mA

• 1000mA

• 100 mA

Which statement about a transistor is correct?

• Has two electrodes

• Acts as a full wave rectifier

• Has its own internal energy supply

• Functions as an amplifier

The purpose of biasing is to establish a ______

• amplification

• power source

• load line

• Q-point

An electronic circuit having the capability to amplify power, voltage or current

• transformer

• attenuator

• amplifier

• transistor