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  • A current I flows through a long straight conductor which is bent into a circular loop of radius R in the middle as shown in the figure. <img alt="" src="https://cdn.entrance360.com/media/uploads/2020/10/15/capture-5.PNG" style="height:160px; width:154

A current I flows through a long straight conductor which is bent into a circular loop of radius R in the middle as shown in the figure. The magnitude of the net magnetic field at point O will be
Option: 1 Zero
Option: 2 \frac{\mu _{0}I}{2R}(1+\pi)
Option: 3 \frac{\mu _{0}I}{4 \pi R}
Option: 4 \frac{\mu _{0}I}{2R}\left ( 1-\frac{1}{\pi} \right )

Answers (1)

\\B=\frac{\mu_0I}{2 R}-\frac{\mu_0I}{2\pi R}\\=\frac{\mu_0I}{2R}[1-\frac{1}{\pi}]

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Safeer PP

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