Electrical energy

  • Created by: emews
  • Created on: 30-10-17 18:04
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  • Electrical energy
    • Many appliances used at home are lamps or heaters.
    • Tungsten and filament lamps
    • Discharge tube lamps
    • In a tungsten filament lamp the energy is transferred in the resistance wire which makes up the filament.
      • More of the electrical energy is transferred as light.
      • Less of the electrical energy is transferred as heat.
    • energy = current x voltage x time

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