ASNT NDT Level III MT Practice Questions - ASNT NDT Level III Magnetic Particle Testing (MT) Exam

On a B-H curve for a ferromagnetic steel, what does the point labeled Br represent?

Coercive force needed to drive the flux density to zero Saturation flux density at the maximum applied field Residual induction remaining after the magnetizing force is removed Permeability of free space

Correct Answer:

Residual induction remaining after the magnetizing force is removed

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