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JEE Mains · Physics · STD 12 - Magnetism and matter
  • JEE Mains 2022
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  • MCQ

The susceptibility of a paramagnetic material is \(99\) . The permeability of the material in \(Wb / A - m\) is : [Permeability of free space \(\left.\mu_{0}=4 \pi \times 10^{-7} Wb / A -m\right]\)

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Correct Answer

(C) \(4 \pi \times 10^{-5}\)

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Detailed explanation

Susceptibility \(\chi=99\)

\(\mu_{r}=\frac{\mu}{\mu_{0}}=1+\chi\)

\(\mu=\mu_{0}(1+\chi)\)

\(=4 \pi \times 10^{-7}[1+99]\)

\(=4 \pi \times 10^{-5}\)

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