How does an open circuit typically affect current flow?

An open circuit prevents current from flowing at all, effectively acting as a break in the circuit. When a circuit is open, there is a discontinuity that interrupts the path for electrical current, resulting in no flow of electrons. This concept is fundamental in understanding how electrical circuits function.

In normal operation, a complete circuit allows current to flow due to the presence of conductive pathways. Once the circuit is interrupted – whether by a switch being turned off or a broken wire – the continuity is lost, and thus, the current stops. This principle is crucial for troubleshooting electrical systems, as identifying an open circuit allows technicians to find the source of failure to restore functionality.