Magnetic Materials
Abstrak
We next consider the effect of magnetic fields on materials. We expect that the effect will be similar to that with dielectrics – the field will induce a magnetic dipole in the material. Anticipating this we define a magnetization M as the magnetic dipole moment/volume. What will the effect of this be? Consider a tiny cube with faces parallel to the xy, yz, xz planes and one corner at (x,y,z). Consider first the plane at x + dx. Then there will be a dipole moment: p M x,y,z dxdydz in the cube. Hence y y p M x,y,z dxdydz This will mean a current in the –z direction of: y z y p I M x ,y ,zd y dx dz Now consider the next cube out in the x direction (corner at x + dx,y,z). It will produce a current at the same face given by: z y I M x dx,y,z dy Hence the y component of M will produce a net current at the face in the z direction of:
Penulis (1)
Dx Dy Dx
Akses Cepat
- Tahun Terbit
- 2018
- Bahasa
- en
- Total Sitasi
- 211×
- Sumber Database
- Semantic Scholar
- DOI
- 10.3403/00531122
- Akses
- Open Access ✓