If it is assumed that the iron part of magnetic circuit requires zero mmf, relation between Ef and If will be __________

If it is assumed that the iron part of magnetic circuit requires zero

1.	If it is assumed that the iron part of magnetic circuit requires zero mmf, relation between Ef and If will be __________
A.	a)
B.	b)
C.	c)
D.	d)
Answer» B.