Transformers The eddy current loss in a transformer is directly proportional to _______. Square of thickness of core lamination The flux density in the core The supply frequency Thickness of core lamination Square of thickness of core lamination The flux density in the core The supply frequency Thickness of core lamination ANSWER DOWNLOAD EXAMIANS APP
Transformers The power transformer is a constant Main flux device Current device Power device Voltage device Main flux device Current device Power device Voltage device ANSWER DOWNLOAD EXAMIANS APP
Transformers Open circuit test on transformers is conducted to determine copper losses core losses hysteresis losses eddy current losses copper losses core losses hysteresis losses eddy current losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The power efficiency of a lightning transformer is always ______its all day efficiency. Less than Equal to Higher than None of the listed here Less than Equal to Higher than None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load ratio of a 50 Hz single phase transformer is 6000/250 V. The maximum flux in the core is 0.06 Wb. What is the number of primary turns? 900 210 450 350 900 210 450 350 ANSWER DOWNLOAD EXAMIANS APP
Transformers Primary winding of a transformer None of these is always a high voltage winding could either be a low voltage or high voltage winding is always a low voltage winding None of these is always a high voltage winding could either be a low voltage or high voltage winding is always a low voltage winding ANSWER DOWNLOAD EXAMIANS APP
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