The resistance of a wire is \( R \) ohm. If it is melted and stretched to \( n \) times its ...

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The resistance of a wire is \( R \) ohm. If it is melted and stretched to \( n \) times its initial length, its new resistance will be:-
a. \( \frac{\mathrm{R}}{\mathrm{n}} \)
b. \( n^{2} R \)
c. \( \frac{\mathrm{R}}{\mathrm{n}^{2}} \)
d. \( n^{3} R \)
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