Q
The efficiency of a transformer, under heavy loads, is comparatively low because_______________?
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A
A. Copper loss becomes high in proportion to the output
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B
B. Iron loss is increased considerably
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C
C. Voltage drop both in primary and secondary becomes large
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D
D. Secondary output is much less as compared to primary input
Correct Answer:
A. A. Copper loss becomes high in proportion to the output
