Transformers A transformer has full load copper loss of 400 W. The copper loss at half full load will be _____. None of the listed here 200 W 100 W 400 W None of the listed here 200 W 100 W 400 W ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is also called its Power efficiency None of the listed here Energy efficiency Current efficiency Power efficiency None of the listed here Energy efficiency Current efficiency ANSWER DOWNLOAD EXAMIANS APP
Transformers Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is None of these less than one approximately equal to one great than one None of these less than one approximately equal to one great than one ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer having ratings less than 5kVA are generally ______ Natural air cooled Water cooled None of the listed here Oil cooled Natural air cooled Water cooled None of the listed here Oil cooled 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 s.N. (l-s)Ns (Ns-l)s Ns s.N. (l-s)Ns (Ns-l)s Ns ANSWER DOWNLOAD EXAMIANS APP
Transformers If a transformer has 50 turns in the primary winding and 10 turns in the secondary winding, what is the reflective resistance if the secondary load resistance is 250 ? 62500 Ω 25 Ω 250 Ω 6250 Ω 62500 Ω 25 Ω 250 Ω 6250 Ω ANSWER DOWNLOAD EXAMIANS APP
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