measures amount of electricity used It depends on what kind of meter you are talking about one meter is on the side of your house witch measures how much eletricity you use. another kind is a voltage...
How to Read Your Electric Meter
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It's no mystery! Your electric meter can easily be read if you understand some basic rules. Each of the five dials represent one digit of the present...
If you have a copper wire coming out it would be a"ground." This wire is there in case there is crossed wires inside the meter. It allows the electricity to seek the shortest route to the ground...
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