How do series circuits differ from parallel circuits?

In a series circuit, components are indeed connected end-to-end, which creates a single path for current to flow. This arrangement means that the current that passes through each component is the same, and if one component fails or is disconnected, the entire circuit is interrupted and stops functioning. This characteristic defines the essential behavior of series circuits, distinguishing them from parallel circuits, where components are connected across common points and provide multiple pathways for the current, allowing them to function independently of one another.

The other choices highlight different aspects of circuitry. While series circuits do share voltage among components (with the total voltage divided among them), this information does not define the structural relationship of the components within the circuit. The aspect of having multiple paths for current flow pertains specifically to parallel circuits, making that option inaccurate for series behavior. Thus, the defining feature of series circuits is their end-to-end arrangement, which allows them to function as a single continuous path for electrical current.