A parallel circuit connects components across the same two points, creating multiple paths for current. Each branch can carry its own share of current.
What happens in a parallel circuit
Components in parallel usually have the same voltage across them. If one branch opens, other branches may still keep working because their paths are separate.
Parallel versus series
A series circuit has one current path. A parallel circuit has multiple paths, which is why lights, outlets, and many electronic loads are often arranged in parallel.
A parallel circuit is like several roads connected between the same starting and ending points.