What differentiates series circuits from parallel circuits?

A series circuit is characterized by having only one path for current flow. This means that all components are connected along a single loop, and the current has no alternative routes to take. If any part of the circuit fails or is disconnected, the entire circuit is interrupted, stopping current flow through all components.

This characteristic of series circuits is crucial in determining how electrical devices are wired and how they function. For instance, in a series circuit composed of light bulbs, if one bulb burns out, the flow of electricity is halted, and all bulbs go out. This single pathway for current flow is a fundamental aspect that differentiates series circuits from parallel circuits, which allow multiple pathways for current.

Understanding this concept helps in troubleshooting and designing circuits appropriately for desired applications, highlighting the importance of knowing how current behaves in different configurations.