Transformers The principle of working of transformer is Self induction Mutual induction Static induction Dynamic induction Self induction Mutual induction Static induction Dynamic induction ANSWER DOWNLOAD EXAMIANS APP
Transformers The dielectric strength of transformer oil is expected to be 330 kV lkV 100 kV 33 kV 330 kV lkV 100 kV 33 kV ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer operates poorly at very low frequencies because _____ Permeability of core is increased Magnetising current is abnormally high Primary reactance is too much increased None of the listed here Permeability of core is increased Magnetising current is abnormally high Primary reactance is too much increased None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers When secondary of a current transformer is open-circuited its iron core will be hot because of heavy iron losses taking place in it due to high flux density cool as there is no secondary current none of above will happen hot because primary will carry heavy current hot because of heavy iron losses taking place in it due to high flux density cool as there is no secondary current none of above will happen hot because primary will carry heavy current ANSWER DOWNLOAD EXAMIANS APP
Transformers Primary winding of a transformer could either be a low voltage or high voltage winding is always a high voltage winding None of these is always a low voltage winding could either be a low voltage or high voltage winding is always a high voltage winding None of these is always a low voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers The eddy current loss in a transformer is directly proportional to _______. 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 Square of thickness of core lamination ANSWER DOWNLOAD EXAMIANS APP
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