12th November 2019

doitpoms
10

What do you mean by magnetic hysteresis?

Magnetic hysteresis is an important phenomenon and refers to the irreversibility of the magnetisation and demagnetisation process. When a material shows a degree of irreversibility it is known as hysteretic. We will now explore the physics behind ferromagnetic hysteresis.

What is B and H in BH curve?

A B-H curve is used to show the relationship between magnetic flux density (B) and magnetic field strength (H) for a particular material.

What is hysteresis law?

The cycle may be continued so that the graph of the flux density lagging behind the field strength appears as a complete loop, known as a hysteresis loop. The energy lost as heat, which is known as the hysteresis loss, in reversing the magnetization of the material is proportional to the area of the hysteresis loop.
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