Transformers The principle of working of transformer is Static induction Mutual induction Dynamic induction Self induction Static induction Mutual induction Dynamic induction Self induction ANSWER DOWNLOAD EXAMIANS APP
Transformers Harmonics in transformer result in All of the listed here increased core losses magnetic interference with communication circuits increased I2R losses All of the listed here increased core losses magnetic interference with communication circuits increased I2R losses ANSWER DOWNLOAD EXAMIANS APP
Transformers If a power transformer is operated at very high frequencies, then ______ Core losses will be excessive Primary will draw large power None of the listed here Primary reactance is too much increased Core losses will be excessive Primary will draw large power None of the listed here Primary reactance is too much increased ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer having ratings less than 5kVA are generally ______ None of the listed here Natural air cooled Oil cooled Water cooled None of the listed here Natural air cooled Oil cooled Water cooled ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following insulating materials can withstand the highest temperature safely? Mica Asbestos Cellulose Glass fibre Mica Asbestos Cellulose Glass fibre ANSWER DOWNLOAD EXAMIANS APP
Transformers The eddy current loss in a transformer is directly proportional to _______. The flux density in the core Thickness of core lamination The supply frequency Square of thickness of core lamination The flux density in the core Thickness of core lamination The supply frequency Square of thickness of core lamination ANSWER DOWNLOAD EXAMIANS APP
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