Transformers To step 110 V ac down to 20 V ac, the turns ratio must be 0.18 0.018 5.5 18 0.18 0.018 5.5 18 ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer routine efficiency depends upon Power factor of load Supply frequency Load current Both power factor and load current Power factor of load Supply frequency Load current Both power factor and load current ANSWER DOWNLOAD EXAMIANS APP
Transformers The core type transformer provides _______ Shorter magnetic path None of the listed here Lesser average length per turn Much longer magnetic path Shorter magnetic path None of the listed here Lesser average length per turn Much longer magnetic path ANSWER DOWNLOAD EXAMIANS APP
Transformers Which type of winding is used in 3phase shell-type transformer? Sandwich type Rectangular type Cylindrical type Circular type Sandwich type Rectangular type Cylindrical type Circular type ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load primary current is about ______of full load primary current. Above 40% 3-5% 15-30% 30-40% Above 40% 3-5% 15-30% 30-40% ANSWER DOWNLOAD EXAMIANS APP
Transformers An open-circuit test on a transformer is conducted primarily to measure copper loss total loss insulation resistance core loss copper loss total loss insulation resistance core loss ANSWER DOWNLOAD EXAMIANS APP
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