Transformers A tap changer is used on a transformer for None of the listed here Adjustments in secondary voltage Adjustment in both primary and secondary Adjustment in primary voltage None of the listed here Adjustments in secondary voltage Adjustment in both primary and secondary Adjustment in primary voltage 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? 88 V 8,800 V 8.8 V 880 V 88 V 8,800 V 8.8 V 880 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The approximate efficiency of a large transformer is 50% 95% 65% 80% 50% 95% 65% 80% ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load ratio of a 50 Hz single phase transformer is 6000/250 V. The maximum flux in the core is 0.06 Wb. What is the number of primary turns? 450 900 210 350 450 900 210 350 ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary leakage flux links _____ Primary winding only Secondary winding only None of the listed here Both primary and secondary windings Primary winding only Secondary winding only None of the listed here Both primary and secondary windings ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum flux produced in the core of a transformer is ______ Directly proportional to supply frequency None of the listed here Inversely proportional to primary voltage Inversely proportional to supply frequency Directly proportional to supply frequency None of the listed here Inversely proportional to primary voltage Inversely proportional to supply frequency ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS