What Are BH Curve and Hysteresis in Magnetic Materials?

[amanmahadeshwar]

i have to submit an assignment tomrrow morning

please tell me what BH curve is
what is hysteresis

i need matter all links are welcome

 

[Morga]

http://www.answers.com/topic/b-h-curve?cat=technology

(electromagnetism) A graphical curve showing the relation between magnetic induction B and magnetizing force H for a magnetic material. Also known as magnetization curve.

Just google it...