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Question

In conductors, electrons can flow because their

    A

    ions are free

    B

    protons are free

    C

    electrons are free and mobile

    D

    negative ions are free

    Easy

    Solution

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    Correct option is
    C

    electrons are free and mobile

    In conductors, electrons can flow because in conductors which are generally metals the electrons are free and mobile .Metals have free electrons present in outermost orbit i.e. they are loosely held by nucleus and free to move. This is the fact due to which the electrons can flow in conductors and conduct electricity.

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