Q. 82 A 500A/5A, 50 Hz transformer has a bar primary. The secondary burden is
a pure resistance of and it draws a current of 5 A. If the magnetic core
requires 250 AT for magnetization, the percentage ratio error is
(A) 10.56
(B) -10.56
(C) 11.80
(D) -11.80
Answer:(B)
Explanation: