Hurrah, we come to the end of the module! We started by asking what happens when we turn on an electrical switch in our house. We have now learnt that current flows when there is a potential difference between two points.
A switch is like a key in an electrical circuit. When the switch is turned on, the electrical circuit is complete. The potential difference between the two plug sockets leads to an electric current, as we saw in the module.
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Check out the next module in this series! Electricity 2
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Next Module
Check out the next lesson in this series! Electricity 2