The type of circuit that allows only one pathway for electrons to flow is a series circuit. In a series circuit, the components are connected end-to-end, creating a single path for the current to flow through all the components. If you break the path at any point in a series circuit, the flow of current stops because there is only one route for the electrons to follow.
Here's an example to illustrate the concept of a series circuit: imagine you have three light bulbs connected in a series circuit. If you unscrew one of the bulbs, all the bulbs will go out because the circuit is broken, and there is no alternative path for the current to flow through.
In contrast, parallel circuits provide multiple pathways for the current to flow, allowing components to operate independently of each other. In a parallel circuit, if you disconnect one component, the other components will continue to function because each component has its own path for the current to flow through.
