Transformers The no load primary current is about ______of full load primary current. Above 40% 3-5% 15-30% 30-40% Above 40% 3-5% 15-30% 30-40% 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 Burden of a current transformer is usually expressed in Kilowatt Volts Volt amperes Amperes Kilowatt Volts Volt amperes Amperes ANSWER DOWNLOAD EXAMIANS APP
Transformers The approximate efficiency of a large transformer is 80% 95% 50% 65% 80% 95% 50% 65% ANSWER DOWNLOAD EXAMIANS APP
Transformers When load on a transformer is decreased, ______loss is decreased Copper Friction Hysteresis Eddy current Copper Friction Hysteresis Eddy current ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary and secondary of a transformer are ______ coupled. None of the listed here Magnetically Electrically Electrically and magnetically None of the listed here Magnetically Electrically Electrically and magnetically ANSWER DOWNLOAD EXAMIANS APP
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