Oklahoma Locksmith Practice Exam 2025 – Comprehensive All-in-One Guide to Exam Success!

A series circuit is characterized by a single path for the current to flow. In this type of circuit, all components are connected end-to-end, forming a single continuous loop. As a result, the same amount of current flows through each component in the series. If one component fails or is disconnected, the entire circuit is interrupted, and current can no longer flow, which highlights the dependence of all parts on one another.

In contrast, other types of circuits, like parallel circuits, allow for multiple paths for the current to flow. This means that if one path fails, current can still flow through the remaining paths, maintaining operation. Closed circuits enable current to flow as well, but they don't specify the configuration, which could be either series or parallel. Open circuits do not allow current to flow due to a break in the path. Thus, the defining characteristic of a series circuit is its single pathway, making it the correct answer.