Mains Electricty

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  • Created by: sugglet
  • Created on: 02-10-15 15:53
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  • Mains Electricty
    • AC Current
      • Discovered by Tesla
      • The most effiecient
        • This is because it can be transformed to a different voltage to increase efficientcy
      • Alternating Current
      • On an oscilloscope it would show a wave
        • This is because the current is constantly changing direction
    • DC Current
      • Discovered by Edison
      • Major Downside
        • It can't be transformed, so only has certain uses
      • Power comes from a cell
        • usually a battery
      • Direct Current
      • On an  oscilloscope the line would be straight
        • This is because the current only travels in one direction
    • Plugs
      • Live Wire
        • Usually Brown in colour
      • Earth Wire
        • Usually Green and Yellow in colour
        • The earth plug is longer as it unlocks a gate so that mains is then supplied
      • Neutral Wire
        • Usually Blue in colour
    • Equations
      • Power (W)
        • Energy Transformed (j) / Time (s)
      • Electrical Power
        • Current (A) x Potential Difference (V)
      • Potential Difference (V)
        • Current (I) x Resistance (R)
  • Equations
    • Power (W)
      • Energy Transformed (j) / Time (s)
    • Electrical Power
      • Current (A) x Potential Difference (V)
    • Potential Difference (V)
      • Current (I) x Resistance (R)

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