Transformers In a transformer the resistance between its primary and secondary is 1 ohm Infinite 1000 ohms Zero 1 ohm Infinite 1000 ohms Zero ANSWER DOWNLOAD EXAMIANS APP
Transformers Which motor is preferred for use in mines where explosive gases exist? Induction motor Synchronous motor Shunt motor Air motor Induction motor Synchronous motor Shunt motor Air motor ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer routine efficiency depends upon Supply frequency Power factor of load Load current Both power factor and load current Supply frequency Power factor of load Load current Both power factor and load current ANSWER DOWNLOAD EXAMIANS APP
Transformers The power transformer is a constant Power device Voltage device Main flux device Current device Power device Voltage device Main flux device Current device ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer should never have the secondary open circuited while the primary is energised? Current transformer Potential transformer Power transformer Auto transformer Current transformer Potential transformer Power transformer Auto transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer, leakage flux Helps in transfer of energy Produces mutually induced emf Is minimised by interleaving the primary and secondary windings Is negligible at full load Helps in transfer of energy Produces mutually induced emf Is minimised by interleaving the primary and secondary windings Is negligible at full load ANSWER DOWNLOAD EXAMIANS APP
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