In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of_________________?

Related Mcqs:

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...

The noise resulting from vibrations of laminations set by magnetic forces, is termed as_________________?

A. magnetostrication B. boo C. hum D. zoom...

Distribution transformers are generally designed for maximum efficiency around________________?

A. 90% load B. zero load C. 25% load D. 50% load...

Which of the following loss in a transformer is zero even at full load ____________?

A. Core loss B. Friction loss C. Eddy current loss D. Hysteresis loss...

A good voltage regulation of a transformer means________________?

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...