A magnetic field is a vector field that describes the magnetic influence of electric charges in relative motion and magnetized materials. When charges move in a conducting wire and produce a current i, the magnetic field at any point p due to the current can be calculated by adding up the magnetic field contributions, db, from small segments of the wire g. This tutorial walks the user through importing a pdf file and creating vectors. The direction the magnetic field produced by a moving charge is perpendicular to the direction of motion. Although both types of fields are interconnected, they do different things. For help using the other applications of the magnet software. Magnetism is a class of physical phenomena that are mediated by magnetic fields. The direction of the force due to a magnetic field is.
We will scale the pdf file along with creating layers, points and exporting file to a magnet field file and opening. Get a printable copy pdf file of the complete article 400k, or click on a. Magnet field is a field application of the magnet software this help provides information for the magnet field application. We consider the stability of a ff in terms of various forces and torques on the magnetic particles. Get a printable copy pdf file of the complete article 267k, or click on a page image below to browse page by page. Magnetic field lines always starts from north pole and end on south pole the tangent to the magnetic field lines at any point gives the direction. Both of these english scientists made great discoveries in the field of electromagnetism. A mechanism for the biological effects of weak elf magnetic fields pdf. Magnetic theories electron theory of magnetism electrons spin as they orbit similar to earth spin produces magnetic field magnetic direction depends on direction of rotation nonmagnets equal number of electrons spinning in opposite direction magnets more spin one way than other. Analysis of the magnetic field, force, and torque for two.
The idea of magnetic field lines and magnetic fields was first examined by michael faraday and later by james clerk maxwell. A magnetic field lines is an imaginary curve along which a free unit north pole tends to move. In this paper the analytical expression for the magnetic vector potential, magnetic flux density and magnetic field for a two dimensional halbach cylinder are. Magnetic field basics magnetic fields are different from electric fields.