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Sunday, June 23, 2024
Electricity and Magnetism

Electricity and Magnetism

Electricity has a very long history.The Greek philosopher Thales of Miletus (640 - 546 B.C.) is sometimes credited with being the first person to notice that amber will pick up bits of dry grass or straw if it is...
  Charging by friction, contact or induction. If you rub a balloon on your hair, electrons will be rubbed off your hair onto the balloon (charging by friction).            If you then place the negatively charged balloon near a neutral wall, the balloon...
Electric current Electricity is produced when an electron moves after being taken away from an atom. Review that atoms make up all matter. Atoms are usually electrically balanced, there are as many positive charges (protons) as there are negative charges...