When electrons in a material are free to move, the material is:

an insulator

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a conductor

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a semiconductor

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none of these

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Solution

The correct option is D a conductor
When electrons in a material are free to move, the material is a conductor.
As only conductors have free electrons present in the outermost shell which are mobile and behave as charge carriers and are conduction electrons.

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When electrons in a material are free to move, the material is:

The correct option is D a conductorWhen electrons in a material are free to move, the material is a conductor.As only conductors have free electrons present in the outermost shell which are mobile and behave as charge carriers and are conduction electrons.

The correct option is D a conductor
When electrons in a material are free to move, the material is a conductor.
As only conductors have free electrons present in the outermost shell which are mobile and behave as charge carriers and are conduction electrons.