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. | the value of is independent of the sense of C. |
c. | there may be a point on C where B and dl are perpendicular. |
d. | B vanishes everywhere on C. |
Which of the above statements are correct?
1. a and b
2. a and c
3. b and c
4. c and d
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