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31 March, 06:43

What increase electrical resistance of metal?

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  1. 31 March, 10:18
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    The resistivity of a metal is given as

    rho = k * l/Area

    k is a constant associated with the metal

    l is the length of the metal

    A is the cross sectional area.

    If you decrease the area and increase the length, you will increase the resistance. Always try and do physics problems by a formula of some kind.
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