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1. A coil is wound having a diameter d. Its inductance is 10 mH. If it is rewound on the same core with a wire having diameter 0.5 d and total weight of the wire is the same as before, the inductance will be





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  • By: guest on 02 Jun 2017 01.06 am
    Since diameter is halved, area of cross-section is one-fourth. The number of turns becomes four times. Inductance = μ N2.
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