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JEE PHYSICS MCQ: MAGNETISM AND MATTER

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The unit of permeability of Vacuum

\left(\mu_0\right)

is ______

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Correct option: B

\frac{\mathrm{N}}{\mathrm{A}^2}

Option B (

\frac{\mathrm{N}}{\mathrm{A}^2}

) is correct because the unit of permeability of vacuum (

\mu_0

) is Henry per meter (H/m), which is equivalent to Newton per Ampere squared (N/A²).

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Curie temperature is the one above which A vibration magnetometer consists of two identical bar magnets placed one over the other such that they are perpendicular and bisect each other. The time period of oscillation in a horizontal magnetic field is

{2^{5/4}}

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\mu_{\mathrm{d}}, \mu_{\mathrm{p}}

\mu_{\mathrm{f}}

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