CONDUCTORS, INSULATORS AND SEMICONDUCTORS

Valence bands have greater energy level than conduction bands

• TRUE

• FALSE

As the temperature increases, the conductivity of the insulator also increases.

• TRUE

• FALSE

In doping, impurities are removed from semiconductors to make them pure.

• TRUE

• FALSE

Adding a pentavent impurity to a silicon creates an n-type semiconductor because it will have an excess free electron. Therefore, if we add BORON to a silicon, it will create an n-type semiconductor.

• TRUE

• FALSE

Pure silicon is more conductive than a doped silicon.

• TRUE

• FALSE

p-type semiconductors have holes as the majority charge carriers.

• TRUE

• FALSE

Conductors heat up as electric current passes through them.

• TRUE

• FALSE

A metal spoon in a microwave oven is dangerous because it is a conductor.

• TRUE

• FALSE

A Germanium has four valence electrons.

• TRUE

• FALSE

The conductivity of a semiconductor increases when exposed to heat or light.

• TRUE

• FALSE