Transformers Distribution transformers are generally designed for maximum efficiency around 50% load Zero load 25% load 90% load 50% load Zero load 25% load 90% load ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer transfers electrical energy from primary to secondary usually with a change in ______ Time period Frequency Power Voltage Time period Frequency Power Voltage ANSWER DOWNLOAD EXAMIANS APP
Transformers When the secondary of a transformer is short circuited, the primary inductance _______ Remians unchanged None of the listed here Is decreased Is increased Remians unchanged None of the listed here Is decreased Is increased ANSWER DOWNLOAD EXAMIANS APP
Transformers The principle of working of transformer is Mutual induction Dynamic induction Static induction Self induction Mutual induction Dynamic induction Static induction Self induction ANSWER DOWNLOAD EXAMIANS APP
Transformers The noise produced by a transformer is termed as zoom hum ringing buzz zoom hum ringing buzz ANSWER DOWNLOAD EXAMIANS APP
Transformers The iron core is used to ______of the transformer. Provide tight magnetic coupling Increase the wight None of the listed here Reduce core loss Provide tight magnetic coupling Increase the wight None of the listed here Reduce core loss ANSWER DOWNLOAD EXAMIANS APP
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