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Answer Posted / ganesan
i=v/(r+jx);x=2*3.14*f*L;
In case of ac it has 50hz frequency .so both the reactance
x and r resistance is available.In case of Dc it does not
have frequency .so reactance is zero and resistance in the
circuit is very small.
i=v/(r+0);so DC power taking more initial current .it may
burnt out the transformer windings.
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