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Calucate the new resistance of the wire if area becomes half |
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Answer» Let R=pl/A and R\'=pl/A/2 => R\'=2{pl/A} => R\'=2R। Sorry my mistake Let R=pl/A , and R\'=pl/A/2 => 2R\' =pl/A ।। So, 2R\'=R How New resistance become double |
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