Materials that do not allow electric current to pass through them are called insulators.For example, plastic, rubber, cotton, etcThey are bad conductors of electricity and hence are often used as a covering on electric wires to prevent electric shock.

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What are insulators?

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Materials which allow electric current to pass through them only under certain conditions.

Materials which do not allow electric current to pass through them.

Materials which can carry only a small amount of current through them.

Materials which allow electric current to pass through them.

answer is B.

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Detailed Solution

Materials that do not allow electric current to pass through them are called insulators.
For example, plastic, rubber, cotton, etc
They are bad conductors of electricity and hence are often used as a covering on electric wires to prevent electric shock.

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