What Is A Circuit
Inside the panel, connections are made to the incoming wires. These connections are then used to supply power to selected portions of the home. There are three different combinations: 1) one hot, one neutral, and ground: 110V circuit. 2) two hots, no neutral, and ground: 220V circuit. 3) two hots, neutral, and ground: 220V circuit + neutral, and/or two 110V circuits with a common neutral.
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