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  1. Two wires have their lengths, diameters and resistivities all in the ratio of 1 : 2 : 1. If the resistance of the thinner wire is 10 ohm, the resistance of the thicker wire is
    1. 5 ohm
    2. 10 ohm
    3. 20 ohm
    4. 40 ohm
Correct Option: B

N/A



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