Transformers The noise resulting from vibrations of laminations set by magnetic forces, is termed as Boo Zoom Magnetostriction Hum Boo Zoom Magnetostriction Hum ANSWER DOWNLOAD EXAMIANS APP
Transformers The highest voltage for transmitting electrical power in india is 33 kV 400 kV 132 kV 66 kV 33 kV 400 kV 132 kV 66 kV 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 If a transformer core has air gaps, then, _________ Eddy current is increased Reluctance of magnetic path is decreased Magnetising current is greatly increased Hysteresis loss is decreased Eddy current is increased Reluctance of magnetic path is decreased Magnetising current is greatly increased Hysteresis loss is decreased ANSWER DOWNLOAD EXAMIANS APP
Transformers An open-circuit test on a transformer is conducted primarily to measure copper loss core loss total loss insulation resistance copper loss core loss total loss insulation resistance ANSWER DOWNLOAD EXAMIANS APP
Transformers The main reason for generation of harmonics in a transformer could be poor insulation saturation of core fluctuating load mechanical vibrations poor insulation saturation of core fluctuating load mechanical vibrations ANSWER DOWNLOAD EXAMIANS APP
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