Transformers The power transformer is a constant Voltage device Power device Current device Main flux device Voltage device Power device Current device Main flux device ANSWER DOWNLOAD EXAMIANS APP
Transformers An ideal transformer is one which _______ Does not work Has same number of primary and secondary turns Has no losses and leakage reactance None of the listed here Does not work Has same number of primary and secondary turns Has no losses and leakage reactance None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a transformer has 110 V ac across it. What is the secondary voltage if the turns ratio is 8? 880 V 88 V 8.8 V 8,800 V 880 V 88 V 8.8 V 8,800 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The effect of leakage flux in a transformer is to ______ Increase copper losses Cause voltage drop in the windings None of the listed here Decreases copper losses Increase copper losses Cause voltage drop in the windings None of the listed here Decreases copper losses ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural oil cooling is used for transformers up to a rating of 1000 kVA 250 kVA 500 kVA 3000 kVA 1000 kVA 250 kVA 500 kVA 3000 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers Cores of large transformers are built upto nearly circular cross section in order to reduce Iron losses Copper loss Eddy current loss Leakage reactance Iron losses Copper loss Eddy current loss Leakage reactance ANSWER DOWNLOAD EXAMIANS APP
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