How do electric meters work?
July 3, 2006 1:22 PM Subscribe
How do electric meters work? How do they measure the amount of charge you used? I suspect they must know the amount of charge that enters the home, and then they have some way to measure the amount of charge that leaves the house, but I'm really not sure.
posted by willnot to Technology (18 answers total)
More broadly, since the more I think about it, the more I realize I don't really understand it. How is electricity even converted into mechanical energy like in a motor? Is it all done with magnets or is there some other method at work there?