Transformers In a transformer the energy is conveyed from primary to secondary by the flux through cooling coil None of these through air by the flux through cooling coil None of these through air ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the coefficient of coupling for a transformer in which 4% of the total flux generated in the primary does not pass through the secondary? 0.96 0.4 4 9.6 0.96 0.4 4 9.6 ANSWER DOWNLOAD EXAMIANS APP
Transformers Which motor is preferred for use in mines where explosive gases exist? Shunt motor Induction motor Synchronous motor Air motor Shunt motor Induction motor Synchronous motor Air motor ANSWER DOWNLOAD EXAMIANS APP
Transformers The voltage transformation ratio of a transformer is equal to the ratio of primary turns to secondary turns secondary induced e.m.f. to primary induced e.m.f. secondary terminal voltage to primary applied voltage secondary current to primary current primary turns to secondary turns secondary induced e.m.f. to primary induced e.m.f. secondary terminal voltage to primary applied voltage secondary current to primary current ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is also called its Power efficiency Energy efficiency Current efficiency None of the listed here Power efficiency Energy efficiency Current efficiency None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The principle of working of transformer is Dynamic induction Static induction Self induction Mutual induction Dynamic induction Static induction Self induction Mutual induction ANSWER DOWNLOAD EXAMIANS APP
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