Which logic type requires all switches to be in the closed position for energization?

The logic type that requires all switches to be in the closed position for energization is AND logic. In AND logic circuits, the output is activated only when all inputs are present and active, which in practical applications translates to all switches needing to be closed.

In an AND configuration, if even one switch is open, the complete path for the current is interrupted, resulting in no energization or output. This characteristic is essential in various control and automation systems where confirmation from multiple conditions or components is required to allow for continued operation or control of a load.

Understanding this principle is crucial for designing and troubleshooting electrical circuits, as it governs how multiple conditions interact within a system to distinguish between energized and de-energized states.