Transformers Transformer breaths in when load remains constant load on it decreases load on it increases None of these load remains constant load on it decreases load on it increases None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers The amount of copper in the primary is _______that of secondary. About the same as Greater than None of the listed here Smaller than About the same as Greater than None of the listed here Smaller than ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer transfers electrical energy from primary to secondary usually with a change in ______ Power Frequency Time period Voltage Power Frequency Time period Voltage ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer will be maximum when ______ Copper loss is equal to constant loss Resistance of the two winding are equal Leakage reactance of the two winding None of the listed here Copper loss is equal to constant loss Resistance of the two winding are equal Leakage reactance of the two 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 Losses are small Iron core is used Leakage flux is small Applied voltage and frequency are constant Losses are small Iron core is used Leakage flux is small ANSWER DOWNLOAD EXAMIANS APP
Transformers A no-load test is performed on a transformer to determine efficiency core loss copper loss magnetising current magnetising current and loss efficiency core loss copper loss magnetising current magnetising current and loss ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS