Magnetic fields are regions in space where magnetic forces can be detected. They are created by moving electric charges and exert a force on other moving charges or magnetic materials.
Imagine a giant invisible spiderweb that fills the space around a magnet. When you place another magnet or a piece of iron near it, it gets caught in the spiderweb and is pulled towards the first magnet.
Tesla: The unit used to measure the strength of a magnetic field.
Electromagnetism: The branch of physics that deals with the relationship between electricity and magnetism.
Magnetic Flux: A measure of how many magnetic field lines pass through a given area.
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