Verified Solution • 2025–26 Session moderate

QJEEM21Ph0a96: JEE Main 2021 Physics - Class 12 JEEM21Ph0a96 Solution: The magnetic susceptibility of a material of a rod is 499.…

The magnetic susceptibility of a material of a rod is 499. Permeability in vacuum is 4 π\pi ×\times 10 −- 7 H/m. Absolute permeability of the material of the rod is :

Multiple Choice Options

  • A 4 π\pi ×\times 10 −- 4 H/m
  • B 2 π\pi ×\times 10 −- 4 H/m
  • C 3 π\pi ×\times 10 −- 4 H/m
  • D π\pi ×\times 10 −- 4 H/m

Step-by-Step Verified Solution

μ\mu = μ\mu 0 (1 + xm)

= 4 π\pi ×\times 10 −- 7 ×\times 500

= 2 π\pi ×\times 10 −- 4 H/m

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