Transformers The efficiency of a transformer, under heavy loads, is comparatively low because voltage drop both in primary and secondary becomes large iron loss is increased considerably secondary output is much less as compared to primary input copper loss becomes high in proportion to the output voltage drop both in primary and secondary becomes large iron loss is increased considerably secondary output is much less as compared to primary input copper loss becomes high in proportion to the output ANSWER DOWNLOAD EXAMIANS APP
Transformers Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is None of these approximately equal to one less than one great than one None of these approximately equal to one less than one great than one ANSWER DOWNLOAD EXAMIANS APP
Transformers The winding of the transformer with greater number of turns will be _____ None of the listed here Low voltage winding Either high or low voltage winding High voltage winding None of the listed here Low voltage winding Either high or low voltage winding High voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a power transformer should always be open shorted switched fused open shorted switched fused ANSWER DOWNLOAD EXAMIANS APP
Transformers Harmonics in transformer result in increased I2R losses All of the listed here magnetic interference with communication circuits increased core losses increased I2R losses All of the listed here magnetic interference with communication circuits increased core losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiencies of transformers compared with that of electric motors of the same power are much smaller somewhat smaller much higher about the same much smaller somewhat smaller much higher about the same ANSWER DOWNLOAD EXAMIANS APP
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