A short circuit is an electrical circuit that allows current to flow along an unintended path, bypassing the normal load. This can happen when two wires touch each other, or when a wire comes into contact with a metal object. Short circuits can be dangerous, as they can cause fires or damage electrical equipment. There are a few different ways to check for a short circuit.
One way to check for a short circuit is to use a multimeter. A multimeter is a device that can measure voltage, current, and resistance. To check for a short circuit, set the multimeter to measure resistance. Then, touch the probes of the multimeter to the two terminals of the circuit. If the resistance is very low, then there is a short circuit. You can troubleshoot the issue by finding the point in the circuit where the short circuit is occurring, and then repairing or replacing the damaged component.