Transformers When the secondary of a transformer is short circuited, the primary inductance _______ Remians unchanged Is decreased None of the listed here Is increased Remians unchanged Is decreased None of the listed here Is increased ANSWER DOWNLOAD EXAMIANS APP
Transformers The transformer that should never the secondary open circuited when primary is energised is _______ Power transformer Current transformer Voltage transformer Auto transformer Power transformer Current transformer Voltage transformer Auto transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers An open-circuit test on a transformer is conducted primarily to measure copper loss core loss total loss insulation resistance copper loss core loss total loss insulation resistance ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has a 1:6 turns ratio and a secondary coil load resistance of 470 . The load resistance as seen by the source is 1.3 Ω 7.8 Ω 78 Ω 13 Ω 1.3 Ω 7.8 Ω 78 Ω 13 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers Which winding of the transformer has less cross-sectional area? Primary winding Secondary winding High voltage winding Low voltage winding Primary winding Secondary winding High voltage winding Low voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers The iron core is used to ______of the transformer. Reduce core loss Provide tight magnetic coupling None of the listed here Increase the wight Reduce core loss Provide tight magnetic coupling None of the listed here Increase the wight ANSWER DOWNLOAD EXAMIANS APP
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