Transformers A transformer transfers electrical energy from primary to secondary usually with a change in ______ Time period Voltage Frequency Power Time period Voltage Frequency Power ANSWER DOWNLOAD EXAMIANS APP
Transformers By laminating the core of a transformer, we decrease _____ Eddy current loss Leakage reactance Hysteresis loss Copper loss Eddy current loss Leakage reactance Hysteresis loss Copper loss ANSWER DOWNLOAD EXAMIANS APP
Transformers Efficiency of a power transformer is of the order of 98 per cent 25 per cent 50 per cent 100 per cent 98 per cent 25 per cent 50 per cent 100 per cent ANSWER DOWNLOAD EXAMIANS APP
Transformers When the secondary of a transformer is short circuited, the primary inductance _______ Is decreased Is increased Remians unchanged None of the listed here Is decreased Is increased Remians unchanged None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers An isolation transformer has primary to secondady turns ratio of 1:1 Can be any ratio 2:1 1:2 1:1 Can be any ratio 2:1 1:2 ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum load that a power transformer can carry is limited by its temperature rise voltage ratio dielectric strength of oil copper loss temperature rise voltage ratio dielectric strength of oil copper loss ANSWER DOWNLOAD EXAMIANS APP
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