Question

What is meant by the terms electrical 'insulator' and 'semiconductor' ?

Answer 1

Answer:

Hi mate

Insulator

An insulator is a material that does not conduct electrical current.

For example - plastic, rubber, glass.

Semiconductor

A semiconductor material has an electrical conductivity value falling between that of a conductor and an insulator.

For example - silicon , germanium, gallium

Hope it's help

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Answer 2

Answer:

An electrical insulator is a material in which electric current does not flow freely. ... Other materials—semiconductors and conductors—conduct electric current more easily. The property that distinguishes an insulator is its resistivity; insulators have higher resistivity than semiconductors or conductors.