Transformers Cores of large transformers are built upto nearly circular cross section in order to reduce Leakage reactance Eddy current loss Copper loss Iron losses Leakage reactance Eddy current loss Copper loss Iron losses ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer, leakage flux Is negligible at full load Helps in transfer of energy Is minimised by interleaving the primary and secondary windings Produces mutually induced emf Is negligible at full load Helps in transfer of energy Is minimised by interleaving the primary and secondary windings Produces mutually induced emf ANSWER DOWNLOAD EXAMIANS APP
Transformers The effect of leakage flux in a transformer is to ______ Decreases copper losses Cause voltage drop in the windings None of the listed here Increase copper losses Decreases copper losses Cause voltage drop in the windings None of the listed here Increase copper losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The power transformer is a constant Current device Voltage device Main flux device Power device Current device Voltage device Main flux device Power device ANSWER DOWNLOAD EXAMIANS APP
Transformers A common method of cooling a power transformer is natural air cooling oil cooling Any of these air blast cooling natural air cooling oil cooling Any of these air blast cooling 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 48 V 0 V 0.75 V 6 V 48 V 0 V 0.75 V 6 V ANSWER DOWNLOAD EXAMIANS APP
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