Physics, asked by indrajit2719, 7 months ago

A wire of resistance R is stretched so that its length increases by 10%. The resistance of the wire increases by

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Answered by saigoswami007

Answer:

A cylindrical wire is stretched to increase its length by 10% . the percentage increase in the resistance of the wire will be. So, new C.S Area of extended wire A2 = Pi (r1)^2 = 0.91 Pi r^2

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