Electrical Properties Of Solids:
#) Depending upon the electrical conductivities the solids are classified in given three times:
>> Conductors: The solids which have the conductivity in range 104 to 107 ohm-1 are called the
conductors metals are called the best conductors of electricity.
>> Insulators: The solids which have extremely low conductivities ranging between 10-20 ohm are called insulators.
>> Semiconductors: The solids which have conductivity in between those of conductors and insulators are called the semiconductors.