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“Magnetism, as you recall from physics class, is a powerful force that causes certain items to be attracted to refrigerators.”
- Dave Barry
Experimental facts about magnetic interactions. Permanent magnets. North and south magnetic poles.
Magnetic needle. Earth's magnetism. Magnetic field. Magnetic field lines.
Oersted's experiments. Electric current generates magnetic field. Magnetic forces acting between currents (wires).
Right-hand rule. Current loop. Magnetic moment.
Current Loop as a test "magnetic charge". Definition of magnetic field as a maximum torque acting on a unit magnetic moment.
Magnetic field acting on a moving charge. Lorentz force.
Motion of charge particles in magnetic field. Radius of orbital motion.
Earth magnetism as a barrier to cosmic rays. Radiation belts and Aurora (northern) lights.
Presentation on Magnetism
Presentation on Magnetism
Practice Assignments
Practice Assignments
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