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An electric cable contains a single copper wire of radius 9 mm. It’s resistance is 5Ω. This cable is replaced by six insulated copper wires connected in parallel, each of radius 3 mm. The resultant resistance of cable will be

Answer» An electric cable contains a single copper wire of radius 9 mm. It’s resistance is 5Ω. This cable is replaced by six insulated copper wires connected in parallel, each of radius 3 mm. The resultant resistance of cable will be


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