Transformers A transformer transfers electrical energy from primary to secondary usually with a change in ______ Frequency Power Voltage Time period Frequency Power Voltage Time period ANSWER DOWNLOAD EXAMIANS APP
Transformers In which of the following transformer part of primary winding also serves as the secondary winding? Current transformer Auto transformer Potential transformer Step-up transformer Current transformer Auto transformer Potential transformer Step-up transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer will have zero efficiency at None of the listed here No load Full load Half full load None of the listed here No load Full load Half full load ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer should never have the secondary open circuited while the primary is energised? Potential transformer Power transformer Current transformer Auto transformer Potential transformer Power transformer Current transformer Auto transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers When a 6 V battery is connected across the primary of a transformer with a turns ratio of 8, the secondary voltage is 0 V 48 V 6 V 0.75 V 0 V 48 V 6 V 0.75 V ANSWER DOWNLOAD EXAMIANS APP
Transformers Two things which are same for primary and secondary of transformer are ______ None of the listed here Resistance and leakage reactances Ampere turns and voltage per turns Currents and induced voltages None of the listed here Resistance and leakage reactances Ampere turns and voltage per turns Currents and induced voltages ANSWER DOWNLOAD EXAMIANS APP
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