Q4.9Multiple correct
Two identical current carrying coaxial loops, carry current I in an opposite sense. A simple amperian loop passes through both of them once. Calling the loop as C,
- (a)B.dl = 2µ0 I .
- (b)the value of B.dl is independent of sense of C.
- (c)there may be a point on C where B and dl are perpendicular.
- (d)B vanishes everywhere on C.