Transformers In Ns is the synchronous speed and s the slip, then actual running speed of an induction motor will be (Ns-l)s (l-s)Ns s.N. Ns (Ns-l)s (l-s)Ns s.N. Ns ANSWER DOWNLOAD EXAMIANS APP
Transformers The open circuit test on a transformer is always made on ______ None of the listed here High voltage winding Low voltage winding Either low or high voltage winding None of the listed here High voltage winding Low voltage winding Either low or high voltage winding 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 None of these less than 15 A more than 15 A 15 A None of these less than 15 A more than 15 A ANSWER DOWNLOAD EXAMIANS APP
Transformers Efficiency of a power transformer is of the order of 50 per cent 98 per cent 100 per cent 25 per cent 50 per cent 98 per cent 100 per cent 25 per cent ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer routine efficiency depends upon Supply frequency Both power factor and load current Load current Power factor of load Supply frequency Both power factor and load current Load current Power factor of load ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum flux produced in the core of a transformer is ______ None of the listed here Inversely proportional to primary voltage Directly proportional to supply frequency Inversely proportional to supply frequency None of the listed here Inversely proportional to primary voltage Directly proportional to supply frequency Inversely proportional to supply frequency ANSWER DOWNLOAD EXAMIANS APP
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