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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. \(nR\)
1. \(\frac{R}{n}\)
2. \(n^{2}R\)
3. \(\frac{R}{n^{2}}\)
4. \(nR\)
Subtopic: Â Combination of Resistors |
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