By stretching a wire, its radius is reduced to half what it was before. Its resistance is higher than before...

When a wire is stretched and its radius becomes r//2 then its resistance will be

A wire is stretched 30%, what is the % change in its resistance?

A wire of lenth L is drawn such that its diameter is reduced to half of its original diamter. If the initial resistance of the wire were 10 Omega , its new resistance would be

A wire of length l is drawn such that its diameter is reduced to half of its original diameler. If the initial resistance of the wire were 10Omega . its resistance would become