Transformers The permissible flux density in case of cold rolled grain oriented steel is around 2.7 Wb/m² 3.7 Wb/m² 4.7 Wb/m² 1.7 Wb/m² 2.7 Wb/m² 3.7 Wb/m² 4.7 Wb/m² 1.7 Wb/m² ANSWER DOWNLOAD EXAMIANS APP
Transformers No-load current of a transformer has has high magnitude and low power factor has high magnitude and high power factor has small magnitude and high power factor has small magnitude and low power factor has high magnitude and low power factor has high magnitude and high power factor has small magnitude and high power factor has small magnitude and low power factor ANSWER DOWNLOAD EXAMIANS APP
Transformers In which of the following transformer part of primary winding also serves as the secondary winding? Current transformer Potential transformer Auto transformer Step-up transformer Current transformer Potential transformer Auto transformer Step-up transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer the energy is conveyed from primary to secondary by the flux through cooling coil through air None of these by the flux through cooling coil through air None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers A shell-type transformer has high eddy current losses None of these negligibly hysteresis losses reduced magnetic leakage high eddy current losses None of these negligibly hysteresis losses reduced magnetic leakage ANSWER DOWNLOAD EXAMIANS APP
Transformers How many primary volts must be applied to a transformer with a turns ratio of 0.1 to obtain a secondary voltage of 9 V? 0.9 V 900 V 90 V 9 V 0.9 V 900 V 90 V 9 V ANSWER DOWNLOAD EXAMIANS APP
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