Transformers In Ns is the synchronous speed and s the slip, then actual running speed of an induction motor will be (Ns-l)s s.N. Ns (l-s)Ns (Ns-l)s s.N. Ns (l-s)Ns ANSWER DOWNLOAD EXAMIANS APP
Transformers Short circuit test of a transformer helps us to find its None of the listed here Full load cu loss Iron loss Cu loss at no load None of the listed here Full load cu loss Iron loss Cu loss at no load ANSWER DOWNLOAD EXAMIANS APP
Transformers If a power transformer is operated at very high frequencies, then ______ None of the listed here Core losses will be excessive Primary reactance is too much increased Primary will draw large power None of the listed here Core losses will be excessive Primary reactance is too much increased Primary will draw large power ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has full load copper loss of 400 W. The copper loss at half full load will be _____. 200 W None of the listed here 100 W 400 W 200 W None of the listed here 100 W 400 W ANSWER DOWNLOAD EXAMIANS APP
Transformers Power transformers are generally designed to have maximum efficiency around half-load 10% overload no-load near full-load half-load 10% overload no-load near full-load ANSWER DOWNLOAD EXAMIANS APP
Transformers In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of 15 A less than 15 A None of these more than 15 A 15 A less than 15 A None of these more than 15 A ANSWER DOWNLOAD EXAMIANS APP
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