A) Proportional to a
B) Proportional to a2
C) Proportional to I/a
D) Equal to zero
Correct Answer: C
Solution :
\[B=\frac{{{\mu }_{0}}}{4\pi }\frac{I}{a}(\sin \theta +\sin \theta )=\frac{{{\mu }_{0}}I\sin \theta }{2\pi a}\]B at any point on Y axis is inversely proportional to a.You need to login to perform this action.
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