Magnetism
Subject:
Physics [1]
Magnetism is the force between magnetic poles, like poles repel opposites attract. Force varies as inverse spuare of distance. Stronger than gravity and there are no such thing as a single pole. Magnetic field lines will always be loops since magnetic fields always have both a North and a South. Compasses will align with the field lines and by convention magnetic force and field go from N to S. All magnetism is caused by accelerating electric charges.
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