A) \[\frac{{{\mu }_{0}}i}{r}\]
B) \[\frac{{{\mu }_{0}}i}{2r}\]
C) \[\frac{{{\mu }_{0}}i}{4r}\]
D) Zero
Correct Answer: D
Solution :
The magnetic induction at \[O\]due to the current in portion \[AB\] will be zero because \[O\]lies on \[AB\] when extended.
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