B-h curve, Physics

Assignment Help:

BH curve:

For any ferromagnetic material there is a definite value of flux density (B), corresponding to a specified value of magnetising force (H).  These values can be ascertained from graphs of B against H for each material. A BH curve can only be obtained using a piece of material that has never been magnetised before. Once the material has been magnetised and the curve obtained, the production of another BH curve, from the same piece of material, is not possible.

The BH curve is the line O to Q on the hysteresis curve shown below.

1954_HYSTERESIS LOOP.png

The gradient of the BH curve gives the permeability of the material.  In practice it is found that the magnetic property of different specimens of the same material vary considerably. The fact that permeability varies for a given material may also be seen from the shape of the curve, if the permeability was a constant, the graph of B against H would be a straight line.

 

 

 


Related Discussions:- B-h curve

Determine the linear momentum of a proton, A particle of mass , initially m...

A particle of mass , initially moving with a speed v, collides head on ELASTICALLY with an identical particle initially at rest. a. Do you expect the total mass of the particles

Entropy, How to calculate change in entropy.

How to calculate change in entropy.

Alpha-particle and a proton have the similar kinetic energy, An electron, a...

An electron, an alpha-particle and a proton have the similar kinetic energy. Which one of these particles has the main de-Broglie wavelength?

Muslinbag., what is a muslin bag in electric..

what is a muslin bag in electric..

Define rocket in drag (princeton), Define Rocket in Drag (Princeton)? A...

Define Rocket in Drag (Princeton)? A rocket has an effectual frontal area A and blasts off with a constant acceleration a straight up from the surface of the Earth. a)

What is the magnitude of the component, A 105-N suitcase sits on a rubber r...

A 105-N suitcase sits on a rubber ramp at an airport carousel at a 25° angle. The weight vector can be broken into two perpendicular components. a. What is the magnitude of the

What is the speed of a particle at that point in space, A proton (mass = 1....

A proton (mass = 1.67 x 10 -26 kg charge = 1.60 x 10 -19 C) is running at a speed of 8.50 x 10 4 m/s at a point in an evacuated region of space where the electric potential is 3

Constant negative velocity, Constant Negative Velocity Observe in which...

Constant Negative Velocity Observe in which the object below moves along with a constant velocity within the negative direction. The dot diagram displays in which each consecut

Breakdown voltage, It is a parameter of an insulator that defInes the maxim...

It is a parameter of an insulator that defInes the maximum voltage difference that can be applied across the material before the insulator collapse and conducts.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd