Transformers The eddy current loss in a transformer is directly proportional to _______. Square of thickness of core lamination The supply frequency Thickness of core lamination The flux density in the core Square of thickness of core lamination The supply frequency Thickness of core lamination The flux density in the core ANSWER DOWNLOAD EXAMIANS APP
Transformers The power efficiency of a lightning transformer is always ______its all day efficiency. Equal to Less than Higher than None of the listed here Equal to Less than Higher than None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The principle of working of transformer is Self induction Dynamic induction Static induction Mutual induction Self induction Dynamic induction Static induction Mutual induction ANSWER DOWNLOAD EXAMIANS APP
Transformers The open circuit test on a transformer is always made on ______ None of the listed here High voltage winding Either low or high voltage winding Low voltage winding None of the listed here High voltage winding Either low or high voltage winding Low voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers The mutual flux in a transformer remains constant at all loads because ______ Iron core is used Losses are small Leakage flux is small Applied voltage and frequency are constant Iron core is used Losses are small Leakage flux is small Applied voltage and frequency are constant ANSWER DOWNLOAD EXAMIANS APP
Transformers The path of the magnetic flux in transformer should have high reluctance low resistance high resistance low reactance high reluctance low resistance high resistance low reactance ANSWER DOWNLOAD EXAMIANS APP
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