Transformers Short circuit test of a transformer helps us to find its Cu loss at no load Iron loss None of the listed here Full load cu loss Cu loss at no load Iron loss None of the listed here Full load cu loss ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary coil of a transformer is connected to a 60 V ac source. The secondary coil is connected to a 330 load. The turns ratio is 3:1. What is the secondary voltage? 18 V 20 V 2 V 180 V 18 V 20 V 2 V 180 V ANSWER DOWNLOAD EXAMIANS APP
Transformers In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of None of these 15 A less than 15 A more than 15 A None of these 15 A less than 15 A more than 15 A ANSWER DOWNLOAD EXAMIANS APP
Transformers If a power transformer is operated at very high frequencies, then ______ 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 Primary will draw large power Primary reactance is too much increased 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 0 V 0.85 V 1 V 1.7 V 0 V 0.85 V 1 V 1.7 V ANSWER DOWNLOAD EXAMIANS APP
Transformers Which type of winding is used in 3phase shell-type transformer? Circular type Rectangular type Cylindrical type Sandwich type Circular type Rectangular type Cylindrical type Sandwich type ANSWER DOWNLOAD EXAMIANS APP
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