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JEE Main 2026 (Online) 21st January Evening Shift

MCQ+4 / -12026

An infinitely long straight wire carrying current $I$ is bent in a planar shape as shown in the diagram. The radius of the circular part is $r$. The magnetic field at the centre $O$ of the circular loop is :

JEE Main 2026 (Online) 21st January Evening Shift Physics - Magnetic Effect of Current Question 19 English

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