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Which among the following, is a correct expression for µ0.

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Which among the following, is a correct expression for µ0.

(a) µ0=BH

(b) µ0=B/H

(c) µ0=H/B

(d) µ0=BH^2

I got this question at a job interview.

This intriguing question originated from Permeability of Free Space or Magnetic Constant topic in division Simple Magnetic Circuits of Basic Electrical Engineering

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Correct answer is (b) µ0=B/H

Best explanation: Magnetic permeability is the constant of proportionality between the magnetic flux density and magnetic field strength of a given medium. Hence µ0=B/H.

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