The resistance of a wire is R, It is stretched uniformly so that its length is doubled. The resistance now becomes

The resistance of a wire is R, It is stretched uniformly so that its l

1.	The resistance of a wire is R, It is stretched uniformly so that its length is doubled. The resistance now becomes
A.	2 R
B.	R / 2
C.	4 R
D.	R / 4
Answer» D. R / 4

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The resistance of a wire is R, It is stretched uniformly so that its length is doubled. The resistance now becomes

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