A material 'B' has twice the specific resistance of 'A'. A circular wire made of 'B' has twice the diameter of wire made of 'A' then for the two wires to have the same resistance, the ratio, IA?IB?? of their respective length must be
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Step 1: Recall that the resistance R of a wire is given by R = (Ļ Ć L)āA, where Ļ is the resistivity, L is the length, and A is the crossāsectional area. Show moreā¦
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