

MCQOPTIONS
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1. |
A 500 A, 50 Hz current transformer has a bar primary. The secondary burden is a pure resistance of 1 and it draws a current of 5 A. If the magnetic core requires 250 Ampere-turn for magnetization, the percentage ratio error is __________ |
A. | 10.56% |
B. | -10.56% |
C. | 11.80% |
D. | -11.80% |
Answer» C. 11.80% | |