if the length of the conductor is doubled what will be its new resistance PLZZ with formulla
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New resistance is 8 times the old resistance. If the length is double then the resistance would increase by 8 times.
Since R=P*L/A (Resistivity constant) length becomes 2L and area becomes 1/4th.
So, almost the new resistance increase by 4 times.
Explanation:
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