Transformers If a transformer core has air gaps, then, _________ Hysteresis loss is decreased Reluctance of magnetic path is decreased Eddy current is increased Magnetising current is greatly increased Hysteresis loss is decreased Reluctance of magnetic path is decreased Eddy current is increased Magnetising current is greatly increased ANSWER DOWNLOAD EXAMIANS APP
Transformers The noise resulting from vibrations of laminations set by magnetic forces, is termed as Magnetostriction Hum Zoom Boo Magnetostriction Hum Zoom Boo ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a power transformer should always be switched shorted open fused switched shorted open fused ANSWER DOWNLOAD EXAMIANS APP
Transformers Which motor is preferred for use in mines where explosive gases exist? Synchronous motor Air motor Induction motor Shunt motor Synchronous motor Air motor Induction motor Shunt motor ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer will be maximum when ______ None of the listed here Copper loss is equal to constant loss Leakage reactance of the two winding Resistance of the two winding are equal None of the listed here Copper loss is equal to constant loss Leakage reactance of the two winding Resistance of the two winding are equal ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is also called its Current efficiency Power efficiency None of the listed here Energy efficiency Current efficiency Power efficiency None of the listed here Energy efficiency ANSWER DOWNLOAD EXAMIANS APP
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