if a wire of length L is stretched from a fraction inorder to make its resistance four times the original
such that its new length is 3/2 times the original length...
then find the fraction by which it is increased....
if a wire of length L is stretched from a fraction inorder to make its resistance four times the original
such that its new length is 3/2 times the original length...
then find the fraction by which it is increased....