I understand if we touch the wire and were are on the ground it creates a complete circuit. So we get electrocuted.
But how does the ground or earth wire works, so that we don’t get electrocuted?
In: Engineering
If you look at an electrical device you can imagine there are parts of the device that should have electricity in them and parts that should not have electricity in them. For example, you probably don’t want your microwave door to be electrified.
If something happens and a part of the device that you touch becomes electrified (like say maybe the insulation on a wire frays and touches the body of the device) then that poses a risk to the operator. The idea of the “ground wire” is that you can connect it to anything that shouldn’t have electricity in it, and something happens that causes those things to become electrified the electricity will go down that wire instead of going into a person.
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