Question

A conducting wire of resistance R ohm is stretched in such a way that its area becomes 1/nth part of it's original area, now what will be the resistance of wire

Answer 1

Answer:

their will be no change in resistance

Explanation:

as the wire is Streched,the length will increase but at the same time area cross section will decrease and their is no change in the material by which wire is made so no change in individual specific resistivity.