Bi-Polar Junction Transistor

A transistor has how many pn junctions?

• 1

• 2

• 3

• 4

In an npn transistor, the majority carriers in the emitter are

• Free electrons

• Holes

• Neither

• Both

For normal operation of the tran sistor, the collector diode has to be

• Forward biased

• Reverse biased

• Nonconducting

• Operating in the breakdown

  region

Most of the electrons in the base of an npn transistor flow

• Out of the base lead

• Into the emitter

• Into the base supply

• Into the collector

A transistor acts like a diode and a

• Voltage source

• Resistance

• Power supply

• Current source

In the active region, the collector current is not changed significantly by

• Base supply voltage

• Base current

• Collector resistance

• Current gain

The emitter diode is usually

• Forward biased

• Reverse biased

• Nonconducting

• Operating in the breakdown

  region