Transformers A transformer has 200 W as iron loss at full load. The iron loss at full load. The iron loss at half full load will be 100 W 50 W 200 W 400 W 100 W 50 W 200 W 400 W ANSWER DOWNLOAD EXAMIANS APP
Transformers Leakage flux in a transformer occurs because Iron core has high permeability Transformer is not an efficient device Air is not a good magnetic insulator Applied voltage is sinusoidal Iron core has high permeability Transformer is not an efficient device Air is not a good magnetic insulator Applied voltage is sinusoidal ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is also called its Energy efficiency Current efficiency Power efficiency None of the listed here Energy efficiency Current efficiency Power efficiency None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following acts as a protection against high voltage surges due to lightning and switching? Breather Thermal overload relays Conservator Horn gaps Breather Thermal overload relays Conservator Horn gaps ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary and secondary windings are wound on the top of each other in order to reduce ______ Copper losses Iron losses Winding resistance Leakage reactance Copper losses Iron losses Winding resistance Leakage reactance ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer, leakage flux 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 Is minimised by interleaving the primary and secondary windings ANSWER DOWNLOAD EXAMIANS APP
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