Transformers A step up transformer increases Voltage Power Frequency Current Voltage Power Frequency Current ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has a 1:6 turns ratio and a secondary coil load resistance of 470 . The load resistance as seen by the source is 78 Ω 13 Ω 1.3 Ω 7.8 Ω 78 Ω 13 Ω 1.3 Ω 7.8 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers If a transformer core has air gaps, then, _________ Magnetising current is greatly increased Eddy current is increased Reluctance of magnetic path is decreased Hysteresis loss is decreased Magnetising current is greatly increased Eddy current is increased Reluctance of magnetic path is decreased Hysteresis loss is decreased ANSWER DOWNLOAD EXAMIANS APP
Transformers When load on a transformer is increased, the eddy current _____ Remains unchanged None of the listed here Is increased Is decreased Remains unchanged None of the listed here Is increased Is decreased ANSWER DOWNLOAD EXAMIANS APP
Transformers In the short circuit test on a transformer, we generally short circuit ______ None of the listed here High voltage winding Low voltage winding Either low or high voltage winding None of the listed here High voltage winding Low voltage winding Either low or high voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following parts of a transformer is visible from outside? Bushings Core Secondary winding Primary winding Bushings Core Secondary winding Primary winding ANSWER DOWNLOAD EXAMIANS APP
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