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NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS

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Which of the following is/are the units of strength of magnetic field at a point?

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Correct option: C

\mathrm{N}{\mathrm{A}^{ - 1}}\mathrm{\;}{\mathrm{m}^{ - 1}}

Option C (

\mathrm{N}{\mathrm{A}^{ - 1}}\mathrm{\;}{\mathrm{m}^{ - 1}}

) is correct because the magnetic force on a current-carrying wire is F = BIL, so B = F/(IL), and the units are N/(A*m).

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