Question

The resistance of a wire is ‘R’ ohm. If it is melted and stretched to ‘n’ times its original length, its new resistance will be

• A. $nR$
• B. $\frac Rn$
• C. $n^2R$
• D. $\frac {R}{n^2}$

Answer 1

Answer: (C)

$n^2R$

Answer 2

The correct option is (C): $n^2R$.