A small bar magnet lies along the x-axis with its centre fixed at the origin. If the magnetic field at point (5 \stackrel{\^}{i}) {\m} due to this magnet is 4 \times 10^{-6} {\T}, then the magnetic field at point (10 \stackrel{\^}{j}) {\m} will be :

Correct Answer is : 2.5×10−7T

KEAM 2023 Physics and Chemistry Solved Paper

Question : 65 of 120

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A small bar magnet lies along the x-axis with its centre fixed at the origin. If the magnetic field at point (5

)m due to this magnet is 4×10−6T, then the magnetic field at point (10

)m will be :

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