A loop A B C D A, 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 \times 10^{-7} {\T}. The value of k is \_\_\_\_ . (Given \mu_0=4 \pi \times 10^{-7} {\Tm} {\A}^{-1} ) [3 Apr 2025 Shift 1]

Magnetic Effects of Current and Magnetism Part 3

Section: Physics

Question : 13 of 28

Marks: +1, -0

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

[3 Apr 2025 Shift 1]

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