A) \[\frac{1}{X}\]
B) \[\frac{1}{{{X}^{2}}}\]
C) \[\frac{1}{{{X}^{3}}}\]
D) \[\frac{1}{{{X}^{4}}}\]
Correct Answer: C
Solution :
\[{{B}_{axis}}=\frac{{{\mu }_{0}}NI{{R}^{2}}}{2{{({{X}^{2}}+{{R}^{2}})}^{3/2}}}\approx \frac{{{\mu }_{0}}NI{{R}^{2}}}{2{{X}^{3}}}\] here \[{{X}^{2}}+{{R}^{2}}\approx {{X}^{2}}\]You need to login to perform this action.
You will be redirected in
3 sec