JEE Main 21 Jan 2026 Shift 2 Paper Solved Paper

Section: Physics

Question : 36 of 75

Marks: +1, -0

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 :

[21 Jan 2026 Shift 2]

−‌
µ0
2π
‌
I
r
(π+1)
∧
i
−‌
µ0
2π
‌
I
r
(π−1)
∧
i
‌
µ0
2π
‌
I
r
(π+1)
∧
i
‌
µ0
2π
‌
I
r
(π−1)
∧
i

Validate

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