Two wires have their lengths, diameters and resistivities all in the ratio of 1:2. If the resistance of the thiner wire is 10 W, then the resistance of the thicker wire is [CSE (Pre) 2001]

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Two wires have their lengths, diameters and resistivities all in the ratio of 1:2. If the resistance of the thiner wire is 10 W, then the resistance of the thicker wire is [CSE (Pre) 2001]






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