Transistors

What is the type of transistor shown in the diagram below?

• 𝑝𝑛𝑝

• 𝑛𝑝𝑛

• 𝑛𝑛𝑝

• 𝑝𝑝𝑛

• 𝑝𝑝𝑝

One difference between a diode and a transistor is

that _______

• transistors use two dopants

• diodes are used in microchips

• they use different types of dopants

• they use different types of junctions

• they both are used as rectifiers

How does a transistor affect voltage?

• It causes voltage to decrease

• It reduces large voltage changes

• It does not affect voltage

• It amplifies small voltage changes

• It causes the voltage to go to zero

Transistors are mainly used as _____.

• resistors

• rectifiers

• insulators

• capacitors

• Current amplifiers

In an npn-transistor, conventional current passes

from the _______.

• base to the emitter

• emitter to the base

• collector to the emitter

• diode to the collector

• rectifier to the collector

What carries charge in a pnp-transistor?

• electrons

• holes

• protons

• neutrons

• nothing

Current through the collector is ____ the current

through the base.

• a little smaller than

• a little larger than

• much smaller than

• much larger than

• the same as