Note: In AC wiring circuits, the ground lead is usually a bare, green, or white lead and the hot wire is usually red, black, or blue. In DC wiring circuits, the ground lead is usually a black lead; the hot wire is usually red.
WARNING: NEVER CLAMP ONTO A HOT WIRE. IF YOU CLAMP TO A HOT WIRE AND TOUCH THE OTHER PROBE, YOU COULD RECEIVE AN ELECTRIC SHOCK.
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