ELECTRICAL POWER & PD

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Electrical power and PD

  • an electrical appliance transfers electrical energy into other forms of energy.
  • The POWER in Watts, is the energy it transers- and energy transerred is Joules per second.
  • POWER = ENERGY TRANSFERRED  /    TIME
  •  ( Watts)                 (Joules)                   (Seconds) 
  • P= E / T
  • where:

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