Question:
The magnitude of magnetic induction at the mid-point O due to the current arrangement shown in the figure is:
The magnitude of magnetic induction at the mid-point O due to the current arrangement shown in the figure is:
Updated On: Feb 2, 2026
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\( \frac{\mu_0 I}{2 \pi a} \)
\( \frac{\mu_0 I}{\pi a} \)
\( \frac{\mu_0 I}{4 \pi a} \)
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The Correct Option is C
Solution and Explanation
- Magnetic field contributions due to segments \( BC \) and \( ET \) are outward at point \( O \).
Total magnetic field:
\[ B = \frac{\mu_0 I}{4 \pi r} + \frac{\mu_0 I}{4 \pi r} = \frac{\mu_0 I}{\pi a}. \]
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