A) greater than in wire c
B) less than in wire c
C) equal to that in wire c
D) not comparable to that of in wire c due to lack of information
Correct Answer: B
Solution :
(b) less than in wire c Inside the wire \[B(r)=\frac{{{\mu }_{0}}}{2\pi }\frac{l}{{{R}^{2}}}r\Rightarrow \,\,\frac{dB}{dr}=\frac{{{\mu }_{0}}}{2\pi }\frac{l}{{{R}^{2}}}r\] i.e., Slope \[\propto \frac{l}{\pi {{R}^{2}}}\propto \] Current density
You need to login to perform this action.
You will be redirected in
3 sec
