We have a copper wire of resistance R. This wire is pulled so that its length is double ( temperature remains constant) find the new resistance of the wire in terms of its original resistance.
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The resistance will become 4 times of original resistance.
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RohanRohilla:
thanks for your concern but this answer is not correct
this is correct bro
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Resistance will become 4 times as area is halved and length is doubled
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