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

Option 1 -

3π * 10-4 H/m

Option 2 -

π * 10-4 H/m     

Option 3 -

2π * 10-4 H/m

Option 4 -

4π * 10-4 H/m

0 2 Views | Posted 2 months ago
Asked by Shiksha User

  • 1 Answer

  • V

    Answered by

    Vishal Baghel | Contributor-Level 10

    2 months ago
    Correct Option - 3


    Detailed Solution:

    Given  χ = 4 9 9     a n d     μ 0 = 4 π × 1 0 − 7 H / m

    As we know that

    μ r = 1 + χ = 1 + 4 9 9 = 5 0 0  Relative permeability

    Absolute permeability = μ = μ r μ 0 = 5 0 0 × 4 π × 1 0 − 7 = 2 π × 1 0 − 4 H / m

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