Transformers The open circuit test on a transformer is always made on ______ Either low or high voltage winding High voltage winding Low voltage winding None of the listed here Either low or high voltage winding High voltage winding Low voltage winding None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The mutual flux in a transformer remains constant at all loads because ______ Applied voltage and frequency are constant Iron core is used Losses are small Leakage flux is small Applied voltage and frequency are constant Iron core is used Losses are small Leakage flux is small ANSWER DOWNLOAD EXAMIANS APP
Transformers No-load current of a transformer has has high magnitude and low power factor has small magnitude and high power factor has high magnitude and high power factor has small magnitude and low power factor has high magnitude and low power factor has small magnitude and high power factor has high magnitude and high power factor has small magnitude and low power factor ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer with a 110 V primary has a 15:1 turns ratio. The load resistance, RL, is 120 . What is the approximate voltage across the load? 880 V 73 V 88 V 7.3 V 880 V 73 V 88 V 7.3 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The iron core is used to ______of the transformer. Increase the wight Provide tight magnetic coupling None of the listed here Reduce core loss Increase the wight Provide tight magnetic coupling None of the listed here Reduce core loss ANSWER DOWNLOAD EXAMIANS APP
Transformers No-load on a transformer is carried out to determine efficiency of the transformer magnetising current magnetising current and loss copper loss efficiency of the transformer magnetising current magnetising current and loss copper loss ANSWER DOWNLOAD EXAMIANS APP
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