Transformers A transformer is an efficient device because Uses capacitive coupling Uses electric coupling Uses inductive coupling A static device Uses capacitive coupling Uses electric coupling Uses inductive coupling A static device ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer will work on None of the listed here Ac only Dc only AC as well as DC None of the listed here Ac only Dc only AC as well as DC ANSWER DOWNLOAD EXAMIANS APP
Transformers If a transformer core has air gaps, then, _________ Reluctance of magnetic path is decreased Magnetising current is greatly increased Eddy current is increased Hysteresis loss is decreased Reluctance of magnetic path is decreased Magnetising current is greatly increased Eddy current is increased Hysteresis loss is decreased ANSWER DOWNLOAD EXAMIANS APP
Transformers If a power transformer is operated at very high frequencies, then ______ Primary will draw large power Primary reactance is too much increased None of the listed here Core losses will be excessive Primary will draw large power Primary reactance is too much increased None of the listed here Core losses will be excessive ANSWER DOWNLOAD EXAMIANS APP
Transformers A Buchholz relay can be installed on Oil cooled transformer Auto transformer Welding transformer Air-cooled transformer Oil cooled transformer Auto transformer Welding transformer Air-cooled transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers A certain transformer has 400 turns in the primary winding and 2,000 turns in the secondary winding. The turns ratio is 0.2 25 0.4 5 0.2 25 0.4 5 ANSWER DOWNLOAD EXAMIANS APP
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