JEE Mains · Physics · STD 12 - Magnetism and matter
- JEE Mains 2022
- Medium
- 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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Answer & Solution
Correct Answer
(C) \(4 \pi \times 10^{-5}\)
Step-by-step Solution
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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