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MHT CET202016 Oct 2020Morning ShiftPhysicsMagnetic Properties of MatterActual

An iron rod is placed parallel to magnetic field of intensity 2000 A m . The magnetic flux through the rod is 6 10⁻⁴ ~Wb and its cross-sectional area is 3 ~cm ² . The magnetic permeability of the rod in Wb A - m is

Options

  1. A10⁻¹
  2. B10⁻⁴
  3. C10⁻³
  4. D10⁻²

Correct answer

C. 10⁻³

Step-by-step solution

= B H = A H = 6 10⁻⁴ 3 10⁻⁴ 1 2 10³ =10⁻³

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