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along the direction of the magnetic field produced by the magnet, as depicted in Figure 8.1.1. Figure 8.1.1 Magnetic field produced by a bar magnet Notice that the bar magnet consists of two poles, which are designated as the north (N) and the south (S). Magnetic fields are strongest at the poles. The magnetic field lines
A moving charge or current creates a magnetic field in the surrounding space (in addition to E). The magnetic field exerts a force F. on any other moving charge or current present in that field. The magnetic field is a vector field each point in space.
Real magnetic materials need an external magnetic field to be applied in order to produce strong or permanent magnetisation - depends on crystal orientation
The magnetic field strength ranges from approximately 25 to 65 microteslas (0.25 to 0.65 G; by comparison, a strong refrigerator magnet has a field of about 100 G). The intensity of the field is greatest near the poles and weaker near the equator.
• Electrically charged particles generate magnetic forces. • A magnetic field exerts a torque which orients dipoles with the field. • Externally applied magnetic field is called the magnetic field strength, H (amperes/meter) By convention, we say that the magnetic field lines leave the North end of a magnet and enter the South end of a ...
In a diagram of a magnetic field, the magnetic field is represented by magnetic lines of force, which are also called magnetic flux lines. These lines are imaginary. The stronger a magnet, the greater the number of flux lines. It must be noted that, as the diagram to the right illustrates, the magnetic field lines continue through the magnetic
The magnetic field exerts a torque on magnets that tend to make them line up with the field (north pole pointing in the direction of the B field. The magnet, aligned with the field, will feel a force toward the region of stronger field. When anti-aligned with the field, the magnet will feel a force toward the region of weaker field.
