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Q. No.The resistance of a wire is \(R~\Omega\). If it is melted and stretched \(n\) times its original length, its new resistance will be:
| 1. | \(\frac{R}{n}\) | 2. | \(n^{2}R\) |
| 3. | \(\frac{R}{n^{2}}\) | 4. | \(nR\) |
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Subtopic: Â Combination of Resistors |
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