A) \[\frac{1}{r}\]
B) \[\frac{1}{{{r}^{3/2}}}\]
C) \[\frac{1}{{{r}^{2}}}\]
D) \[\frac{1}{{{r}^{3}}}\]
Correct Answer: B
Solution :
\[B=\frac{{{\mu }_{o}}}{4\pi }.\frac{2\pi Ni{{R}^{2}}}{{{r}^{3}}}\Rightarrow B\propto \frac{1}{{{r}^{3}}}\]
You need to login to perform this action.
You will be redirected in
3 sec
