P2 (DOMESTIC ELECTRICITY)

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  • P2 (Domestic E)
    • E in the home
      • AC (230V) and DC
      • Cables
        • Brown - live (230V)
        • Blue - neutral (0V)
        • G+Y - earth (0V, no current)
    • Power + E transfer
      • E=Pt
      • P=VI
      • P=I^2R
      • E=QV
    • The National Grid
      • Transformers step the p.d up and down
        • High p.d in pylons
          • Less E lost due to lower current
      • Power stations run at below max

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vlad_the_lad

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