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Explain reason for why resistance increase …

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Explain reason for why resistance increase in metals and decrease in non metal when temperature increase

    • Posted by Shivam Pandit 7 years, 3 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Aviral Upadhyay 7 years, 3 months ago

    In metals there are free electrons.when we increase the temperature of the metals free electrons moves in random direction and collide with other electrons .hence the speed of electrons get reduced.as we know flow of electrons forms current and if we reduces the speed of electrons then current also decreases.Hence Resistance increases.

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