A copper wire of length L m and area of cross section A m² has resisitivity 1.68 x 10-⁸ ohm m how resisitivity of copper wire will change if length of the wire is doubled
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Explanation:
there are two answers... If the cross section is not changed so the answer is different and if the
cross section is changed so the answer is different
....hope it helps ☺️☺️
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