This post is a list of fundamental principles of electromagnetism. There are 16 principles listed below.
- Charged particles have an electric field in all directions (positive or negative)
- Particles of the opposite charge attract eachother
- Particles of the same charge repel eachother
- Electrons have a negative charge
- Charged particles have a magnetic field (north and south orientation)
- Opposite magnetic poles attract eachother
- Magnets have coordinated particles pointing in the same magnetic field
- Electrons moving in a wire is an electric current in the opposite direction
- Electric current is caused by a charge imbalance in a circuit or change in an magnetic field
- An electric current creates a magnetic field curling around it (near field)
- An accelerating electric field creates a perpendicular magnetic field (far field)
- An accelerating magnetic field creates a perpendicular electric field (far field)
- Electric and magnetic fields propagate together through space (far field)
- Electromagnetic waves travel at the speed of light
- Electromagnetic waves vary in frequency
- Visible light is an electromagnetic wave in a specific frequency range
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