FINAL Solid State Quiz

How many valence electrons are there in a germanium semiconductor?

• 1

• 2

• 4

• none

Other than germanium, what is another type of semiconductor material generally used?

• copper

• helium

• aluminum

• silicon

A pure semiconductor is also referred to as

• a clean room device

• intrinsic

• extrinsic

• transistor

Silicon that has been doped with a pentavalent impurity is called

• a p-type semiconductor

• an n-type semiconductor

• to driver

• an insulator

In an n-type semiconductor, the free electrons are called the

• minority carriers

• majority carriers

• holes

Silicon that has been doped with a trivalent impurity is called a(n)

• n-type semiconductor

• p-type semiconductor

• pn junction

• covalent bond

The border between p-type and n-type crystal is called the

• pn junction

• p-type border Cn-type margin

• p junction

• n-type margin

A silicon diode will allow a continuous current in the forward direction, if the source voltage is

• greater than 0.7 V

• equal to 7.7 V

• less than 0.7 V

• zero

What is the approximate current level in a reversed-biased diode?

• 0.7 mA

• 0.7 A

• 17 A

• zero

If the current in a diode is too large

• the load resistor will short

• excessive heat may destroy the diode

• the diode becomes an amplifier

• bulk resistance becomes smaller