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1. In an unloaded transformer, the fluxes limiting the primary and secondary are 30 mWb and 20 mWb. The coefficient of coupling is





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  • By: guest on 02 Jun 2017 01.06 am
    Φ11 = (1 - k) Φ1 φ11 = φ1 - φ2 30 - 20 10 mWb 10 mWb = (1 - k) 30m 0.33 = 1 - k k = 0.67 .
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