Question

. Give reason : Wood and glass are good insulators. ​

Answer 1

Answer:

Direct answer to this question is

Their resistivity is very high

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Answer 2

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When a current flows through a conductor, the free electrons in the atoms move from one end of the conductor to the other. Certain materials have less free electrons in their atoms and the current does not easily flow through the material. There are no such free electrons in wood and glass. Therefore, they cannot conduct electricity and they are good insulators.