Transformers In a transformer the energy is conveyed from primary to secondary through cooling coil None of these through air by the flux through cooling coil None of these through air by the flux ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural air cooling is generally restricted for transformers up to 1.5 MVA 50 MVA 15 MVA 5 MVA 1.5 MVA 50 MVA 15 MVA 5 MVA 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 The efficiency of a transformer, under heavy loads, is comparatively low because voltage drop both in primary and secondary becomes large iron loss is increased considerably copper loss becomes high in proportion to the output secondary output is much less as compared to primary input voltage drop both in primary and secondary becomes large iron loss is increased considerably copper loss becomes high in proportion to the output secondary output is much less as compared to primary input ANSWER DOWNLOAD EXAMIANS APP
Transformers The temperature rise of transformer is directly proportional to _______ Apparent power None of the listed here Leakage reactance Reactive power Apparent power None of the listed here Leakage reactance Reactive power ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer breaths in when None of these load remains constant load on it increases load on it decreases None of these load remains constant load on it increases load on it decreases ANSWER DOWNLOAD EXAMIANS APP
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