Transformers Losses which occur in rotating electric machines and do not occur in trans formers are copper losses hysteresis and eddy current losses magnetic losses friction and windage losses copper losses hysteresis and eddy current losses magnetic losses friction and windage losses ANSWER DOWNLOAD EXAMIANS APP
Transformers A certain transformer has a turns ratio of 1 and a 0.85 coefficient of coupling. When 2 V ac is applied to the primary, the secondary voltage is 1 V 0 V 0.85 V 1.7 V 1 V 0 V 0.85 V 1.7 V ANSWER DOWNLOAD EXAMIANS APP
Transformers If 25 W of power are applied to the primary of an ideal transformer with a turns ratio of 10, the power delivered to the secondary load is 0 W 250 W 2.5 W 25 W 0 W 250 W 2.5 W 25 W ANSWER DOWNLOAD EXAMIANS APP
Transformers No-load on a transformer is carried out to determine magnetising current magnetising current and loss efficiency of the transformer copper loss magnetising current magnetising current and loss efficiency of the transformer copper loss ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer will be maximum when ______ Copper loss is equal to constant loss Leakage reactance of the two winding None of the listed here Resistance of the two winding are equal Copper loss is equal to constant loss Leakage reactance of the two winding None of the listed here Resistance of the two winding are equal ANSWER DOWNLOAD EXAMIANS APP
Transformers The output current corresponding to the maximum efficiency for a transformer having core loss of 200 W and equivalent resistance referred to secondary of 0.5 Ω is 20 A 10 A 15 A 5 A 20 A 10 A 15 A 5 A ANSWER DOWNLOAD EXAMIANS APP
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