The efficiency of a transformer will be maximum when

A. copper losses = hysteresis losses

B. hysteresis losses = eddy current losses

C. eddy current losses = copper losses

D. copper losses = iron losses

Answer: Option D

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Comments ( 2 )

  1. Vivek Kumar
    Vivek Kumar :
    6 months ago

    Efficiency of transformer becomes maximum when, variable losses=constant losses.
    Copper losses are variable losses and iron losses are constant losses in transformer.

  2. Kiran Powarpatil
    Kiran Powarpatil :
    6 months ago

    In a three phase AC circuit the sum of all three generated voltages is

Related Questions on Transformers

A good voltage regulation of a transformer means

A. output voltage fluctuation from no load to full load is least

B. output voltage fluctuation with power factor is least

C. difference between primary and secondary voltage is least

D. difference between primary and secondary voltage is maximum