♡_____Physics_____♡
What is hysteresis loop ?
Give Note on electron theory of paramagnetism ?
Answers
Explanation:
In addition to the Curie temperature and saturation magnetization, ferromagnets can retain a memory of an applied field once it is removed. This behavior is called hysteresis and a plot of the variation of magnetization with magnetic field is called a hysteresis loop.
Answer:
A hysteresis loop shows the relationship between the induced magnetic flux density (B) and the magnetizing force (H). It is often referred to as the B-H loop. ... The loop is generated by measuring the magnetic flux of a ferromagnetic material while the magnetizing force is changed.
Paramagnetism is due to the presence of unpaired electrons in the material, so most atoms with incompletely filled atomic orbitals are paramagnetic, although exceptions such as copper exist. ... An external magnetic field causes the electrons' spins to align parallel to the field, causing a net attraction.