A uniform wire of resistance \( R \) is uniformly compressed along ...

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A uniform wire of resistance \( R \) is uniformly compressed along its length, until its radius becomes \( n \) times the
\( \mathrm{P} \) original radius. Now resistance of the wire becomes

W
(a) \( \frac{R}{n^{4}} \)
(b) \( \frac{R}{n^{2}} \)
(c) \( \frac{R}{n} \)
(d) \( n R \)
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