Find the internal field when the applied field is 12 units, molecular field constant is 0.1 units and the magnetization is 74 units.(a) 86(b) 62(c) 752(d) 19.4The question was posed to me during an interview.I want to ask this question from Magnetic Materials in portion Magnetic Forces and Materials of Electromagnetic Theory

Find the internal field when the applied field is 12 units, molecular

1.	Find the internal field when the applied field is 12 units, molecular field constant is 0.1 units and the magnetization is 74 units.(a) 86(b) 62(c) 752(d) 19.4The question was posed to me during an interview.I want to ask this question from Magnetic Materials in portion Magnetic Forces and Materials of Electromagnetic Theory
Answer» Right CHOICE is (d) 19.4 To explain I would say: From Curie law, the internal field of a magnetic material is GIVEN by H = Ho + χ M, where χ is the MOLECULAR field constant. Put χ = 0.1, M = 74 and Ho = 12, we get H = 12 + (0.1)74 = 19.4 units.

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