Transformers The primary leakage flux links _____ Secondary winding only Both primary and secondary windings Primary winding only None of the listed here Secondary winding only Both primary and secondary windings Primary winding only None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer operates poorly at very low frequencies because _____ Primary reactance is too much increased Magnetising current is abnormally high None of the listed here Permeability of core is increased Primary reactance is too much increased Magnetising current is abnormally high None of the listed here Permeability of core is increased ANSWER DOWNLOAD EXAMIANS APP
Transformers If a power transformer is operated at very high frequencies, then ______ Primary will draw large power Core losses will be excessive None of the listed here Primary reactance is too much increased Primary will draw large power Core losses will be excessive None of the listed here Primary reactance is too much increased ANSWER DOWNLOAD EXAMIANS APP
Transformers Leakage flux in a transformer occurs because Iron core has high permeability Applied voltage is sinusoidal Air is not a good magnetic insulator Transformer is not an efficient device Iron core has high permeability Applied voltage is sinusoidal Air is not a good magnetic insulator Transformer is not an efficient device ANSWER DOWNLOAD EXAMIANS APP
Transformers Cores of large transformers are built upto nearly circular cross section in order to reduce Eddy current loss Copper loss Leakage reactance Iron losses Eddy current loss Copper loss Leakage reactance Iron losses ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS