Les Champs Magnétiques

Les Champs Magnétiques, or magnetic fields, are invisible regions around magnetic objects where they exert forces on certain materials like iron, nickel, and cobalt. These fields are generated by moving electric charges, such as electric currents in wires or the Earth's core. The magnetic field influences how these materials behave, causing attraction or repulsion. For example, compasses align with the Earth's magnetic field, helping us find directions. Magnetic fields are fundamental in many technologies, including electric motors, generators, and medical imaging (MRI). They are a key aspect of electromagnetism, linking electricity and magnetism.