A loop ABCDA, carrying current I = 12 A, is placed in a plane, consists of two semi-circular segments of radius R₁ = 6π m and R₂ = 4π m. The magnitude of the resultant magnetic field at center O is k×10⁻⁷ T. The value of k is _ _ _. (Given μ₀ = 4π×10⁻⁷ T m A⁻¹)

Magnetic Effects of Current and Magnetism: JEE Main 2025 Physics question

JEE Main 2025 · 3 Apr, Morning shift · Q46

JEE Main 20253 Apr, Morning shiftPhysicsMediumMagnetic Effects of Current and Magnetism165× since 2002

A loop ABCDA, carrying current I = 12 A, is placed in a plane, consists of two semi-circular segments of radius

R_1 = 6\pi

m and

R_2 = 4\pi

m. The magnitude of the resultant magnetic field at center O is

k\times10^{-7}

T. The value of k is ______. (Given

\mu_0 = 4\pi\times10^{-7}\ \text{T m A}^{-1}

)

Your answerInteger or decimal

JEE Main 2025 Magnetic Effects of Current and Magnetism Question with Solution (3 Apr Morning shift, Q46) | JEE Arc