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P9 - Electricity - Coggle Diagram
P9 - Electricity
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P9i - Electrical Safety
Live Wire - brown wire, provides the alternating potential difference from the mains supply (it's roughly 230V).
Neutral Wire - blue wire, completes the circuit, when opperating current flows through the live & neutral wire (it's roughly 0V).
Earth Wire - green & yellow wire, used for protecting the wire and safety, stops the appliance from becoming live. Also 0V
P9d - Resistance
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Variable resistor - a resistor where the resistance value can be adjusted, affecting the current through each lamp
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P9c - Current, Change & Energy