A transformer transforms__________________?

Related Mcqs:

A transformer cannot raise or lower the voltage of a D.C. supply because_______________?

A. there is no need to change the D.C. voltage B. a D.C. circuit has more losses C. Faraday’s laws of electromagnetic induction are not valid since the rate of change of flux is zero D. none of the above...

The main reason for generation of harmonics in a transformer could be_______________?

A. fluctuating load B. poor insulation C. mechanical vibrations D. saturation of core...

The changes in volume of transformer cooling oil due to variation of atmospheric temperature during day and night is taken care of by which part of transformer?

A. Conservator B. Breather C. Bushings D. Buchholz relay...

The secondary winding of which of the following transformers is always kept closed?

A. Step-up transformer B. Step-down transformer C. Potential transformer D. Current transformer...

For given applied voltage, with the increase in frequency of the applied voltage?

A. eddy current loss will decrease B. eddy current loss will increase C. eddy current loss will remain unchanged D. none of the above...