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NEET2016PhysicsMagnetic Properties of MatterActual

The magnetic susceptibility is negative for:

Options

  1. Adiamagnetic material only
  2. Bparamagnetic material only
  3. Cferromagnetic material only
  4. Dparamagnetic and ferromagnetic materials

Correct answer

A. diamagnetic material only

Step-by-step solution

As we know the relation between the magnetic permeability and susceptibility of material is, μ r = 1 + χ m … ( i ) ∵ For diamagnetic substances, μ r < 1 So, according to Eq. (i), the magnetic susceptibility χ m of diamagnetic substance will be negative. While in case of para and ferromagnetic substances subsceptibility is positive.

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