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What change in magnetizing force is required to decrease the flux density of magnetic material

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A) What change in magnetizing force is required to decrease the flux density of magnetic material from a saturation in the positive direction to zero.

B) Also same question, however magnetic force is required to reverse the direction of the magnetic field from saturation in the positive direction in the direction to saturation in the negative direction.

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Solution Summary

In a 410 word solution, the concepts and solutions are carefully explained.

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Please see the attachment for figures.

Key words: Coercive magnetic field, Remnant magnetic field, Hysteresis curve.

A)
INTRODUCTION:

This question is with regard to Hystresis curve in magnetism.

Let us consider a magnetic material kept in a magnetic field H.As the intensity of the applied magnetic field is increased, the atomic magnetic dipoles tend to align in the direction of the applied magnetic field and hence the flux density (B) of the magnetic material increases in the positive direction as shown in the figure (1) and reaches a saturation level at 'C' when all the dipoles are aligned along the direction of the applied magnetic ...

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