Transformers The efficiency of a transformer, under heavy loads, is comparatively low because 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 voltage drop both in primary and secondary becomes large ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary leakage flux links _____ Secondary winding only Primary winding only None of the listed here Both primary and secondary windings Secondary winding only Primary winding only None of the listed here Both primary and secondary windings ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load primary current is about ______of full load primary current. Above 40% 30-40% 3-5% 15-30% Above 40% 30-40% 3-5% 15-30% ANSWER DOWNLOAD EXAMIANS APP
Transformers The core type transformer provides _______ Lesser average length per turn Much longer magnetic path None of the listed here Shorter magnetic path Lesser average length per turn Much longer magnetic path None of the listed here Shorter magnetic path ANSWER DOWNLOAD EXAMIANS APP
Transformers The amount of copper in the primary is _______that of secondary. None of the listed here Smaller than Greater than About the same as None of the listed here Smaller than Greater than About the same as ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer will be maximum when ______ 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 Leakage reactance of the two winding Copper loss is equal to constant loss ANSWER DOWNLOAD EXAMIANS APP
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