Transformers The power transformer is a constant Current device Main flux device Voltage device Power device Current device Main flux device Voltage device Power device ANSWER DOWNLOAD EXAMIANS APP
Transformers Losses which occur in rotating electric machines and do not occur in trans formers are friction and windage losses hysteresis and eddy current losses copper losses magnetic losses friction and windage losses hysteresis and eddy current losses copper losses magnetic losses ANSWER DOWNLOAD EXAMIANS APP
Transformers Which winding of the transformer has less cross-sectional area? Primary winding High voltage winding Secondary winding Low voltage winding Primary winding High voltage winding Secondary winding Low voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers When the secondary of a transformer is short circuited, the primary inductance _______ Remians unchanged Is increased Is decreased None of the listed here Remians unchanged Is increased Is decreased None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Open circuit test on transformers is conducted to determine hysteresis losses core losses copper losses eddy current losses hysteresis losses core losses copper losses eddy current losses ANSWER DOWNLOAD EXAMIANS APP
Transformers If a transformer has 50 turns in the primary winding and 10 turns in the secondary winding, what is the reflective resistance if the secondary load resistance is 250 ? 250 Ω 62500 Ω 25 Ω 6250 Ω 250 Ω 62500 Ω 25 Ω 6250 Ω ANSWER DOWNLOAD EXAMIANS APP
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