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What are the factors which reduce the ef...

What are the factors which reduce the efficiency of a transformer ?

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The factors which reduce the efficiency of a transformer are :
(i) Copper losses : Due to heating of primary and secondary coil.
(ii) Iron losses : Due to eddy currents set up in the core of a transformer.
(iii) Hysteresis loss : Loss of energy due to magnetisation and demagnetisation of core transformer.
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