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  • Current i is flowing through a wire, which forms a circle of radius r as shown in the figure. Resistance of segment AXB is twice the resistance of segment AYB. Then , <img alt="" src="htt

Current i is flowing through a wire, which forms a circle of radius r as shown in the figure. Resistance of segment AXB is twice the resistance of segment AYB. Then ,

Option: 1

magnetic field at P is zero


Option: 2

magnetic field at P is \mathrm{ \frac{\mu_0 i}{4 r}}


Option: 3

magnetic field at P is  \mathrm{\frac{\mu_0 i}{12 r}} 


Option: 4

magnetic field at P is \mathrm{\frac{\mu_0 i}{6 r}}


Answers (1)

best_answer

Effective current\mathrm{ \Rightarrow \frac{i}{3} \square \frac{2 i}{3}}

\mathrm{ =\frac{i}{3} \\ }

\mathrm{ B=\frac{\mu_0 \frac{i}{3}}{2 R} \times \frac{1}{2} \text { (half part) } }
 

Posted by

chirag

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