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? 450 350 900 210 450 350 900 210 ANSWER DOWNLOAD EXAMIANS APP
Transformers In Ns is the synchronous speed and s the slip, then actual running speed of an induction motor will be (l-s)Ns s.N. Ns (Ns-l)s (l-s)Ns s.N. Ns (Ns-l)s ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer will work on AC as well as DC None of the listed here Ac only Dc only AC as well as DC None of the listed here Ac only Dc only ANSWER DOWNLOAD EXAMIANS APP
Transformers Efficiency of a power transformer is of the order of 98 per cent 100 per cent 50 per cent 25 per cent 98 per cent 100 per cent 50 per cent 25 per cent ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is also called its Current efficiency None of the listed here Power efficiency Energy efficiency Current efficiency None of the listed here Power efficiency Energy efficiency ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary leakage flux links _____ Both primary and secondary windings None of the listed here Secondary winding only Primary winding only Both primary and secondary windings None of the listed here Secondary winding only Primary winding only ANSWER DOWNLOAD EXAMIANS APP
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