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Magnetism (Magnetic Fields (The magnetic field is analogous to the…
Magnetism
Magnetic Fields
The magnetic field is analogous to the electric field that exists in the space around electric charges.
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Magnetic Domain
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The magnetic domains can become dealigned if the magnet is heated excessively, physically deformed or a current is passed through it.
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Magnets
Permanent magnets
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Made from iron, cobalt & nickle
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Right Hand Rules
With a Flat right hand, point your thumb in the direction of the of velocity v, and your fingers in direction of the magnetic field. The palm of your hand pushes in the direction of force.
Point your thumb in the direction of the current and wrap your finger around the wire. You fingers represent the concentric magnetic field lines aroun the wire
Point the thumb in the direction of the current and your fingers in the direction of the magnetic field. The palm will face the direction of the force.
Electrons
Because the electrons in a magnet are in constant motion, a tiny current is formed and produces a magnetic field.
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Definition: the property of matter in which there is a force of attraction or repulsion between like or unlike poles