Transformers Distribution transformers are generally designed for maximum efficiency around 25% load 90% load 50% load Zero load 25% load 90% load 50% load Zero load ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is also called its Energy efficiency None of the listed here Current efficiency Power efficiency Energy efficiency None of the listed here Current efficiency Power efficiency ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer, leakage flux Is minimised by interleaving the primary and secondary windings Produces mutually induced emf Helps in transfer of energy Is negligible at full load Is minimised by interleaving the primary and secondary windings Produces mutually induced emf Helps in transfer of energy Is negligible at full load ANSWER DOWNLOAD EXAMIANS APP
Transformers By laminating the core of a transformer, we decrease _____ Hysteresis loss Eddy current loss Leakage reactance Copper loss Hysteresis loss Eddy current loss Leakage reactance Copper loss ANSWER DOWNLOAD EXAMIANS APP
Transformers The permissible flux density in case of cold rolled grain oriented steel is around 3.7 Wb/m² 2.7 Wb/m² 1.7 Wb/m² 4.7 Wb/m² 3.7 Wb/m² 2.7 Wb/m² 1.7 Wb/m² 4.7 Wb/m² ANSWER DOWNLOAD EXAMIANS APP
Transformers When a 6 V battery is connected across the primary of a transformer with a turns ratio of 8, the secondary voltage is 0.75 V 6 V 48 V 0 V 0.75 V 6 V 48 V 0 V ANSWER DOWNLOAD EXAMIANS APP
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