Transformers A no-load test is performed on a transformer to determine efficiency magnetising current and loss magnetising current core loss copper loss efficiency magnetising current and loss magnetising current core loss copper loss ANSWER DOWNLOAD EXAMIANS APP
Transformers The noise resulting from vibrations of laminations set by magnetic forces, is termed as Hum Magnetostriction Boo Zoom Hum Magnetostriction Boo Zoom ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum efficiency of a distribution transformer is at 80% full load at full load at 50% full load at no load at 80% full load at full load at 50% full load at no load ANSWER DOWNLOAD EXAMIANS APP
Transformers A common method of colling a power transformer is Any of the listed here Natural air cooling Oil cooling Air blast cooling Any of the listed here Natural air cooling Oil cooling Air blast cooling ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer transfers electrical energy from primary to secondary usually with a change in ______ Frequency Voltage Power Time period Frequency Voltage Power Time period 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 0.85 V 1.7 V 1 V 0 V 0.85 V 1.7 V 1 V 0 V ANSWER DOWNLOAD EXAMIANS APP
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