G11 Chapter 11+12 Multiple choice

........... do not obey Ohm's law.

• Conductors

• Metals

• Semiconductors

.......... can be used as rectifiers.

• Diodes

• Transistors

• Resistors

A triode consists of ......... electrodes.

• one

• two

• three

............ can be used as amplifiers.

• Diodes

• Transistors

• Resistors

Germanium and silicon are commonly used......... .

• insulators

• conductors

• semiconductors

In p type semiconductor, .......... are majority carriers.

• protons

• photons

• positive holes

In N type semiconductor, ........... are majority carriers.

• protons

• electrons

• positive holes

The full-wave rectifier uses ........... semiconductor diodes.

• one

• two

• three

In half-wave rectifier uses ............ semiconductor diodes.

• one

• two

• three

Transistors can be used as.......... .

• rectifiers

• amplifiers

• transformers