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Magnetism and Matter question

2020 · Q125
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Magnetism and Matter question

2020 · Q125

NEETPhysicsMagnetism and MatterMCQ+4 / −1
An iron rod of susceptibility 599 is subjected to a magnetizing field of 1200 A m-1. The permeability of the material of the rod is :
(μ0=4π×10−7TmA−1)\left( {{\mu _0} = 4\pi \times {{10}^{ - 7}}Tm{A^{ - 1}}} \right)(μ0​=4π×10−7TmA−1)
  1. A
    8.0×10−5TmA−18.0 \times {10^{ - 5}}Tm{A^{ - 1}}8.0×10−5TmA−1
  2. B
    2.4π×10−5TmA−12.4\pi \times {10^{ - 5}}Tm{A^{ - 1}}2.4π×10−5TmA−1
  3. C
    2.4π×10−7TmA−12.4\pi \times {10^{ - 7}}Tm{A^{ - 1}}2.4π×10−7TmA−1
  4. D
    2.4π×10−4TmA−12.4\pi \times {10^{ - 4}}Tm{A^{ - 1}}2.4π×10−4TmA−1
View written solutionFree

Correct answer: D

Xm=599{X_m} = 599Xm​=599

μr=1+Xm=600{\mu _r} = 1 + {X_m} = 600μr​=1+Xm​=600

μ=μrμ0=600×4π×10−7\mu = {\mu _r}{\mu _0} = 600 \times 4\pi \times {10^{ - 7}} μ=μr​μ0​=600×4π×10−7

=2.4π×10−4TmA−1= 2.4\pi \times {10^{ - 4}}Tm{A^{ - 1}}=2.4π×10−4TmA−1

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