A) Zero
B) \[\frac{{{\mu }_{0}}}{2a}({{i}_{1}}-{{i}_{2}})\]
C) \[\frac{{{\mu }_{0}}}{2a}({{i}_{1}}+{{i}_{2}})\]
D) \[\frac{{{\mu }_{0}}}{a}({{i}_{1}}+{{i}_{2}})\] (Here \[{{i}_{1}}\] and \[{{i}_{2}}\] are the currents flowing in the two parts of the circular conductor of radius ?a? and \[{{\mu }_{0}}\] has the usual meaning)
Correct Answer: A
Solution :
See solution 34.
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