A) Zero
B) \[\frac{{{\mu }_{0}}\operatorname{i}}{2\pi L}\]
C) \[\frac{{{\mu }_{0}}\operatorname{i}}{\sqrt{2L}}\]
D) \[\frac{4{{\mu }_{0}}\operatorname{i}}{\sqrt{5}\,\pi L}\]
Correct Answer: A
Solution :
[a] Magnetic field at any point lies on axial position of current carrying conductor B = 0
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