Transformers A transformer has 200 W as iron loss at full load. The iron loss at full load. The iron loss at half full load will be 100 W 50 W 400 W 200 W 100 W 50 W 400 W 200 W ANSWER DOWNLOAD EXAMIANS APP
Transformers For the parallel operation of single phase transformers it is necessary that they should have same polarity same efficiency same number of turns on the secondary side. same kVA rating same polarity same efficiency same number of turns on the secondary side. same kVA rating ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer will work on Dc only Ac only None of the listed here AC as well as DC Dc only Ac only None of the listed here AC as well as DC 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 The maximum load that a power transformer can carry is limited by its dielectric strength of oil copper loss voltage ratio temperature rise dielectric strength of oil copper loss voltage ratio temperature rise ANSWER DOWNLOAD EXAMIANS APP
Transformers When secondary of a current transformer is open-circuited its iron core will be cool as there is no secondary current hot because of heavy iron losses taking place in it due to high flux density none of above will happen hot because primary will carry heavy current cool as there is no secondary current hot because of heavy iron losses taking place in it due to high flux density none of above will happen hot because primary will carry heavy current ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS