Transformers The flux in the core of a single phase transformer is _____ Purely rotating one Purely alternating one Partly alternating and partly rotating None of the listed here Purely rotating one Purely alternating one Partly alternating and partly rotating None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The power transformer is a constant Current device Main flux device Power device Voltage device Current device Main flux device Power device Voltage device ANSWER DOWNLOAD EXAMIANS APP
Transformers How many primary volts must be applied to a transformer with a turns ratio of 0.1 to obtain a secondary voltage of 9 V? 9 V 90 V 900 V 0.9 V 9 V 90 V 900 V 0.9 V 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 13 Ω 7.8 Ω 1.3 Ω 78 Ω 13 Ω 7.8 Ω 1.3 Ω 78 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers How are transformers generally cooled for installations rated at less than 5kVA ? None of the listed here Oil cooled Air cooled Water cooled None of the listed here Oil cooled Air cooled Water cooled ANSWER DOWNLOAD EXAMIANS APP
Transformers We can find _______of the transformer with open circuit test. Total equivalent resistance Copper losses Total equivalent leakage reactance Turn ratio Total equivalent resistance Copper losses Total equivalent leakage reactance Turn ratio ANSWER DOWNLOAD EXAMIANS APP
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