Question

what in Hysteresis curve ? explain in detail.

Answer 1

Hysteresis: -

Not only on your current input hysteresis, but also the past history of inputs is dependent on the production of a system.Dependence arises because the history affect the value of an internal stateOutputs to predict your future, or your internal state or its history should be known.

Hysteresis Loop: -

Cyclically varying magnetic field under the above figure shows the behavior of a ferromagnetic core.

Initially, the core is demagnetized and the magnetic field "H" is set to zero strength. Thus the point "O" marks the starting point of the curve.

Increase the magnetic force on the magnetic induction (B) is increased non-linear, as shown up to the point P, after which it remains constant.

Thus, the point P is known as the saturation point.

To zero "H" on the reduction, the core still remains magnetic. Cue point B is called the residual value of the remaining induction.

"H" (ie increasing the "H" in the opposite direction) further reduction of the point R, the core is completely demagnetized.

At that point the value of the magnetic force is called force field.

The magnetic field is increased in the negative direction, then after a certain point's magnetic induction appears to remain constant

The saturation point in the negative direction.

Similarly, T points and U "H" as the value, respectively, to reach match point points Q and R p is increased again.

Rites and the full cycle of demagnetization of the core is termed as hysteresis loop.

(Note: If time is short and does not have much weight to the question, just to mention the points and their importance is no need to explain the process.)

Attaching importance to the region: -

Area enclosed by the hysteresis loop cycles per unit represents the energy loss per unit volume of material.

Material for transformer: -

Transformer core, soft magnetic material is used which has a small hysteresis.