What type of circuit is created when connecting a light bulb and a battery in a simple loop?

In a simple loop where a light bulb and a battery are connected, a closed circuit is formed. A closed circuit refers to a complete path through which electric current can flow uninterrupted. When the circuit is closed, the connections allow electrons to move from the battery through the light bulb and back to the battery, illuminating the bulb as a result.

This concept is fundamental in understanding basic electrical principles. A closed circuit allows devices to operate as intended, which is the key reason a working light bulb lights up when connected to a power source like a battery. The presence of a closed loop means all components are properly linked, ensuring that current can circulate effectively.

On the other hand, an open circuit lacks complete continuity. If there were a break or discontinuity in the loop, the light bulb would not light up, demonstrating the absence of a closed circuit. A short circuit involves a path of low resistance, allowing an unintended flow of current that can cause overheating or potential damage, which does not occur in a basic circuit setup with a light bulb and battery. Lastly, a parallel circuit involves multiple paths for current to flow and is not applicable to the simple loop described in the question.