how will the resistance of a wire change when the diameter is doubled
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Resistance of wire is inversely proportional to the area of cross- section of a wire. Therefore when diameter is doubled, radius becomes 4 times since d =2r
so 2d = 2(2r) = 4r
Therefore the resistance of the wire will become 1/4 th of its original resistance.
Hope it helps!!
Cheers!!
so 2d = 2(2r) = 4r
Therefore the resistance of the wire will become 1/4 th of its original resistance.
Hope it helps!!
Cheers!!
rita41:
thank u
my pleasure helping u!! :)
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the resistance of wire is inversely proporsnal to the square of the conducting wire..
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