Transformers A transformer with a 110 V primary has a 15:1 turns ratio. The load resistance, RL, is 120 . What is the approximate voltage across the load? 88 V 880 V 73 V 7.3 V 88 V 880 V 73 V 7.3 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The eddy current loss in a transformer is directly proportional to _______. Thickness of core lamination The supply frequency Square of thickness of core lamination The flux density in the core Thickness of core lamination The supply frequency Square of thickness of core lamination The flux density in the core ANSWER DOWNLOAD EXAMIANS APP
Transformers Harmonics in transformer result in increased I2R losses magnetic interference with communication circuits increased core losses All of the listed here increased I2R losses magnetic interference with communication circuits increased core losses All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary leakage flux links _____ Primary winding only Secondary winding only None of the listed here Both primary and secondary windings Primary winding only Secondary winding only None of the listed here Both primary and secondary windings ANSWER DOWNLOAD EXAMIANS APP
Transformers Cores of large transformers are built upto nearly circular cross section in order to reduce Iron losses Eddy current loss Leakage reactance Copper loss Iron losses Eddy current loss Leakage reactance Copper loss ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer is smallest? 2kVA, 500 Hz 2kVA, 50 Hz 2kVA, 200 Hz 2kVA, 400 Hz 2kVA, 500 Hz 2kVA, 50 Hz 2kVA, 200 Hz 2kVA, 400 Hz ANSWER DOWNLOAD EXAMIANS APP
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