Transformers The primary leakage flux links _____ None of the listed here Both primary and secondary windings Secondary winding only Primary winding only None of the listed here Both primary and secondary windings Secondary winding only Primary winding only ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer operates poorly at very low frequencies because _____ Permeability of core is increased None of the listed here Magnetising current is abnormally high Primary reactance is too much increased Permeability of core is increased None of the listed here Magnetising current is abnormally high Primary reactance is too much 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 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 Iron core has high permeability Applied voltage is sinusoidal ANSWER DOWNLOAD EXAMIANS APP
Transformers Cores of large transformers are built upto nearly circular cross section in order to reduce Iron losses Copper loss Leakage reactance Eddy current loss Iron losses Copper loss Leakage reactance Eddy current loss ANSWER DOWNLOAD EXAMIANS APP
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