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  • A very long conducting wire is bent in semi-circular shape from A to B as shown in figure. The magnetic field at point P for steady current configuration is given by: <img alt="" src="htt

A very long conducting wire is bent in semi-circular shape from A to B as shown in figure. The magnetic field at point P for steady current configuration is given by:

Option: 1

\frac{\mu_0 i}{4 R} \, \, pointed \, \, into \, \, the \, \, page


Option: 2

\frac{\mu_0 i}{4 R} \, \, pointed \, \, away \, \, from \, \, the \, \, page


Option: 3

\frac{\mu_0 \mathrm{i}}{4 \mathrm{R}}\left[1-\frac{2}{\pi}\right] pointed \, \, away\, \, from \, \, page


Option: 4

\frac{\mu_0 \mathrm{i}}{4 \mathrm{R}}\left[1-\frac{2}{\pi}\right] pointed \, \, into \, \, the \, \, page


Answers (1)

best_answer

\begin{aligned} & \mathrm{B}_1=\mathrm{B}_2-\left(\begin{array}{c} \mathrm{B}_1+\mathrm{B}_3 \\ \otimes \end{array}\right) \\ & B_p=\frac{\mu_0 i}{4 R}-\left(\frac{\mu_0 i}{4 \pi R}+\frac{\mu_0 i}{4 \pi R}\right) \\ & \mathrm{B}_{\mathrm{p}}=\frac{\mu_0 \mathrm{i}}{4 \mathrm{R}}\left(1-\frac{2}{\pi}\right) \odot \\ & \end{aligned}

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HARSH KANKARIA

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