Transformers The noise resulting from vibrations of laminations set by magnetic forces, is termed as Magnetostriction Zoom Boo Hum Magnetostriction Zoom Boo Hum ANSWER DOWNLOAD EXAMIANS APP
Transformers The iron core is used to ______of the transformer. None of the listed here Reduce core loss Increase the wight Provide tight magnetic coupling None of the listed here Reduce core loss Increase the wight Provide tight magnetic coupling ANSWER DOWNLOAD EXAMIANS APP
Transformers No-load on a transformer is carried out to determine magnetising current magnetising current and loss copper loss efficiency of the transformer magnetising current magnetising current and loss copper loss efficiency of the transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers The output current corresponding to the maximum efficiency for a transformer having core loss of 200 W and equivalent resistance referred to secondary of 0.5 Ω is 5 A 10 A 15 A 20 A 5 A 10 A 15 A 20 A ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary coil of a transformer is connected to a 60 V ac source. The secondary coil is connected to a 330 load. The turns ratio is 3:1. What is the secondary voltage? 20 V 18 V 2 V 180 V 20 V 18 V 2 V 180 V ANSWER DOWNLOAD EXAMIANS APP
Transformers A Buchholz relay can be installed on Auto transformer Air-cooled transformer Welding transformer Oil cooled transformer Auto transformer Air-cooled transformer Welding transformer Oil cooled transformer ANSWER DOWNLOAD EXAMIANS APP
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