A parallel circuit is a type of electrical circuit in which the components are connected side-by-side, rather than in a series. This allows the current to flow through multiple paths, which can be beneficial in some situations. For example, if one of the components in a parallel circuit fails, the other components will still receive power.
Parallel circuits are also used to increase the overall current flow in a circuit. This can be useful in applications where a high current is required, such as in powering electric motors or lighting systems.