16 Practical Electricity
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5 Terms
What does an earth wire do
It provides an alternative oath of low resistance for excess charged on the appliance and currents to flow to earth
A safety wire rhat is needed to earth appliances with a metal casing
What does the neutral wire do
It provides a return path for current to flow from the appliance to the electrical source
Kept at zero voltage and completes the pat for current to flow through the appliances in an electric ciruit
What does the live wire do
It carries the current from the electrical source to the appliance
Carries high voltage and current
What is electromotive force
Work done per unit charge by the source in driving charges around the entire complete closed circuit
What is potential difference
Work done per unit charge in driving charges through the component
Note 
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