119K views · 1.3K reactions | Magnetic fields are invisible forces produced by moving electric charges or magnetic materials. They have both direction (from north to south) and strength, represented by field lines. Measured in teslas (T), magnetic fields influence magnets and moving charges. According to Faraday’s Law, changing magnetic fields can even induce electric currents. They play a vital role in motors, electronics, and protecting Earth from solar radiation. | Fadhel Mahdi | Facebook