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 400 W 200 W 100 W 50 W 400 W 200 W 100 W 50 W ANSWER DOWNLOAD EXAMIANS APP
Transformers When load on a transformer is decreased, ______loss is decreased Friction Eddy current Hysteresis Copper Friction Eddy current Hysteresis Copper ANSWER DOWNLOAD EXAMIANS APP
Transformers The path of the magnetic flux in transformer should have high reluctance low resistance low reactance high resistance high reluctance low resistance low reactance high resistance 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 15 A None of these more than 15 A less than 15 A 15 A None of these more than 15 A less than 15 A ANSWER DOWNLOAD EXAMIANS APP
Transformers When the secondary of a transformer is short circuited, the primary inductance _______ Remians unchanged None of the listed here Is increased Is decreased Remians unchanged None of the listed here Is increased Is decreased ANSWER DOWNLOAD EXAMIANS APP
Transformers The main reason for generation of harmonics in a transformer could be saturation of core fluctuating load poor insulation mechanical vibrations saturation of core fluctuating load poor insulation mechanical vibrations ANSWER DOWNLOAD EXAMIANS APP
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