Transformers The eddy current loss in a transformer is directly proportional to _______. The flux density in the core Square of thickness of core lamination Thickness of core lamination The supply frequency The flux density in the core Square of thickness of core lamination Thickness of core lamination The supply frequency ANSWER DOWNLOAD EXAMIANS APP
Transformers In case of 3-phase induction motors, plugging means interchanging two supply phases for quick stopping starting the motor on load which is more than the rated load locking of rotor due to harmonics pulling the motor directly on line without a starter interchanging two supply phases for quick stopping starting the motor on load which is more than the rated load locking of rotor due to harmonics pulling the motor directly on line without a starter ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer routine efficiency depends upon Both power factor and load current Load current Power factor of load Supply frequency Both power factor and load current Load current Power factor of load Supply frequency ANSWER DOWNLOAD EXAMIANS APP
Transformers A certain transformer has a turns ratio of 1 and a 0.85 coefficient of coupling. When 2 V ac is applied to the primary, the secondary voltage is 1.7 V 0 V 1 V 0.85 V 1.7 V 0 V 1 V 0.85 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is ______ the commercial efficiency. More than The same as Less than None of the listed here More than The same as Less than None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers A no-load test is performed on a transformer to determine copper loss magnetising current magnetising current and loss core loss efficiency copper loss magnetising current magnetising current and loss core loss efficiency ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS