Transformers In a transformer routine efficiency depends upon Power factor of load Supply frequency Load current Both power factor and load current Power factor of load Supply frequency Load current Both power factor and load current ANSWER DOWNLOAD EXAMIANS APP
Transformers Short circuit test of a transformer helps us to find its None of the listed here Iron loss Cu loss at no load Full load cu loss None of the listed here Iron loss Cu loss at no load Full load cu loss ANSWER DOWNLOAD EXAMIANS APP
Transformers Leakage flux in a transformer occurs because Applied voltage is sinusoidal Iron core has high permeability Transformer is not an efficient device Air is not a good magnetic insulator Applied voltage is sinusoidal Iron core has high permeability Transformer is not an efficient device Air is not a good magnetic insulator ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has full load copper loss of 400 W. The copper loss at half full load will be _____. 200 W 400 W 100 W None of the listed here 200 W 400 W 100 W None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers In the short circuit test on a transformer, we generally short circuit ______ High voltage winding Low voltage winding None of the listed here Either low or high voltage winding High voltage winding Low voltage winding None of the listed here Either low or high voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has a 1:6 turns ratio and a secondary coil load resistance of 470 . The load resistance as seen by the source is 1.3 Ω 7.8 Ω 78 Ω 13 Ω 1.3 Ω 7.8 Ω 78 Ω 13 Ω ANSWER DOWNLOAD EXAMIANS APP
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