Electricity

Electricity

1. In the Home

   • Wall Sockets
     • Wiring Standards
       • Earth/Ground
         • Colour
           • Dark Green
           • Yellow and Green
         • Purpose
           • Safety Feature
           • Shorts the circuit to ground
             • In case of an electrical fault
             • Redirects the charge so it cannot cause damage
       • Live
         • Colour
           • Brown
           • Red
         • Purpose
           • Provides the charge
           • Provide the electricity
       • Neutral
         • Colour
           • Blue
         • Purpose
           • Close the circuit
           • Return discharged electrons to the grid
     • Characteristics
       • Voltage
         • 230-240
       • Frequencey
         • 50Hz
       • Alternating Current
         • Can travel long distances
           • National Grid
   • Fuses
     • Purpose
       • Protect the user
         • How?
           • The small wire contained within the fuse will break if too much current attempts to cross it.
       • Protect the connected item
     • Rated in amps
       • 3 amps
       • 5 amps
       • 13 amps

2. Circuits

   • Symbols

3. Measurements

   • Volts
     • Abbreviated to V
       • Equation
         • Volts = Watts / amps
   • Amps
     • Abbreviated to A
       • Equation
   • Coulombs
     • Abbreviated to C
       • Equation
         • Coulombs = current(A) x time (s)
   • Watts
     • Abbreviated to W
       • Equation
         • Watt = Amp x Volt
   • Hertz
     • Abbreviated to Hz
   • Ohms
     • Abbreviated to Omega (Ω)

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