Electricity Revision

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  • ELECTRICITY
    • CHARGE SYMBOL = Q UNIT = C
      • STATIC
        • Friction
        • Induction
          • Like charges REPEL
      • MOVING
        • Current (Amps)
          • I = Q/T
      • ENERGY PER CHARGE
        • Volts (V)
          • V= E/Q
    • CIRCUITS
      • SERIES
        • Only One Path
        • Current same everywhere
        • Voltage shared
      • PARALLEL
        • Current is shared
        • Voltage is same for each branch
      • RESISTANCE
        • R = V/I
          • OHM'S LAW
        • measuring the opposition of the current flow
      • SEMI conductors
        • Thermisittor
          • Hotter = low r
        • LDR
          • brigther = low r
        • Diode
    • MAINS ELECTRICITY
      • Alternating Current
        • UK 240 V
      • Current HIGH in live wires
        • Fuse melts
          • Breaks circuit

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