Transformers Leakage flux in a transformer occurs because Applied voltage is sinusoidal Iron core has high permeability Transformer is not an efficient device Air is not a good magnetic insulator Applied voltage is sinusoidal Iron core has high permeability Transformer is not an efficient device Air is not a good magnetic insulator ANSWER DOWNLOAD EXAMIANS APP
Transformers The transformer that should never the secondary open circuited when primary is energised is _______ Auto transformer Current transformer Voltage transformer Power transformer Auto transformer Current transformer Voltage transformer Power transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers The winding of the transformer with greater number of turns will be _____ High voltage winding Low voltage winding None of the listed here Either high or low voltage winding High voltage winding Low voltage winding None of the listed here Either high or low voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer is an efficient device because Uses inductive coupling Uses electric coupling A static device Uses capacitive coupling Uses inductive coupling Uses electric coupling A static device Uses capacitive coupling ANSWER DOWNLOAD EXAMIANS APP
Transformers When a 6 V battery is connected across the primary of a transformer with a turns ratio of 8, the secondary voltage is 0 V 0.75 V 48 V 6 V 0 V 0.75 V 48 V 6 V 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
EXAMIANS