a wire of given material has length L and area of cross section A has resistance of 16 ohm. What would be the resistance of same material having length L/2 and area of cross section 4/A ?
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The relationship between resistance and wire length is proportional . The resistance of a thin wire is greater than the resistance of a thick wire because a thin wire has fewer electrons to carry the current. The relationship between resistance and the area of the cross section of a wire is inversely proportional .
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