A)
B)
C)
D)
Correct Answer: B
Solution :
(b) The magnetic field from the centre of wire of radius R is given by \[B\left( \frac{{{\mu }_{0}}l}{2{{R}^{2}}} \right)r(for\,r<R)\Rightarrow B\propto r\] and \[B=\frac{{{\mu }_{0}}l}{2\pi r}(r>R)\Rightarrow B\propto \frac{1}{r}\] From this description, we can say that the graph (b) is a correct representation.You need to login to perform this action.
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