a wire of stretched by 20% . what is % change in its resistance
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If the length increased then the resistance will be decreased
If a wire stretched by 20%
then resistance will be decreased by 20%
If a wire stretched by 20%
then resistance will be decreased by 20%
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0
As R=rho L/A
R is directly proportional to the length so the resiatance will also increased by 20%
R is directly proportional to the length so the resiatance will also increased by 20%
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