Transformers Natural oil cooling is used for transformers up to a rating of 3000 kVA 500 kVA 250 kVA 1000 kVA 3000 kVA 500 kVA 250 kVA 1000 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers A certain transformer has a turns ratio of 1 and a 0.85 coefficient of coupling. When 2 V ac is applied to the primary, the secondary voltage is 1.7 V 0.85 V 0 V 1 V 1.7 V 0.85 V 0 V 1 V ANSWER DOWNLOAD EXAMIANS APP
Transformers Power transformers are generally designed to have maximum efficiency around half-load 10% overload near full-load no-load half-load 10% overload near full-load no-load ANSWER DOWNLOAD EXAMIANS APP
Transformers When load on a transformer is decreased, ______loss is decreased Friction Copper Hysteresis Eddy current Friction Copper Hysteresis Eddy current ANSWER DOWNLOAD EXAMIANS APP
Transformers The noise produced by a transformer is termed as hum buzz ringing zoom hum buzz ringing zoom ANSWER DOWNLOAD EXAMIANS APP
Transformers When the secondary of a transformer is short circuited, the primary inductance _______ Remians unchanged Is decreased Is increased None of the listed here Remians unchanged Is decreased Is increased None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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