An open circuit is the exact opposite of a short: the loop is broken, so no current can flow at all. An open switch, a snapped wire, a leg that popped out of the breadboard, or a blown fuse all create an open circuit.
An open circuit is the exact opposite of a short: the loop is broken, so no current can flow at all. An open switch, a snapped wire, a leg that popped out of the breadboard, or a blown fuse all create an open circuit.