Current Electricity: How Electrons Power Our World

  1. Current electricity is the steady flow of electrons through a conductor like a wire.
  2. It powers almost everything around us—from light bulbs to laptops to trains.
  3. Voltage is the push that drives electrons, while current is the amount flowing.
  4. Direct current (DC) flows one way, while alternating current (AC) switches direction rapidly.
  5. Thomas Edison championed DC, while Nikola Tesla popularized AC for power grids.
  6. Metals like copper and aluminum are preferred conductors because electrons move easily in them.
  7. Insulators such as rubber or plastic prevent current from escaping, keeping us safe.
  8. Circuits provide pathways for electrons—open circuits stop the flow, closed ones allow it.
  9. Electric current is measured in amperes, showing how many charges pass each second.
  10. From charging phones to running cities, current electricity is the heartbeat of modern life.