Transformers In a transformer the resistance between its primary and secondary is 1 ohm 1000 ohms Infinite Zero 1 ohm 1000 ohms Infinite Zero 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 0.85 V 1 V 1.7 V 0 V 0.85 V 1 V 1.7 V 0 V ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer breaths in when load on it increases load on it decreases None of these load remains constant load on it increases load on it decreases None of these load remains constant ANSWER DOWNLOAD EXAMIANS APP
Transformers The main reason for generation of harmonics in a transformer could be poor insulation fluctuating load mechanical vibrations saturation of core poor insulation fluctuating load mechanical vibrations saturation of core ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer will be maximum when ______ Leakage reactance of the two winding Copper loss is equal to constant loss None of the listed here Resistance of the two winding are equal Leakage reactance of the two winding Copper loss is equal to constant loss None of the listed here Resistance of the two winding are equal ANSWER DOWNLOAD EXAMIANS APP
Transformers Sumpner's test is conducted on transformers to determine stray losses all-day efficiency None of these temperature stray losses all-day efficiency None of these temperature ANSWER DOWNLOAD EXAMIANS APP
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