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Done by abdulrahman osama grade:7b2. magnetism. What is magnetism?. Magnetism is a property of materials that respond to an applied magnetic field . Magnets attract and repel. Permanent magnets have persistent magnetic fields caused by ferromagnetism . .
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Done by abdulrahmanosama grade:7b2 magnetism
What is magnetism? • Magnetism is a property of materials that respond to an applied magnetic field. Magnets attract and repel. Permanent magnets have persistent magnetic fields caused by ferromagnetism.
Magnetism, at its root, arises from two sources: • Electric currents or more generally, moving electric charges create magnetic fields (see Maxwell's Equations). • Many particles have nonzero "intrinsic" (or "spin") magnetic moments. Just as each particle, by its nature, has a certain mass and charge, each has a certain magnetic moment, possibly zero.
Different types of magnitism. • Diamagnetism • Paramagnetism • Ferromagnetism • Antiferromagnetism • Ferrimagnetism • Superparamagnetism • Electromagnet