If 4 devices are wired in series in a single zone, what happens to the amperage?

In a series circuit, the current (or amperage) remains constant throughout all devices connected in that circuit. This means that the same amount of current flows through each device, irrespective of how many devices are added in series. Therefore, the total amperage in a series configuration does not change; it remains at the same level as the current flowing through a single device.

If the system were to experience an increase in resistance due to additional devices, it might alter the voltage distribution, but it does not double or increase the amperage. The current stays stable when wired in series, demonstrating the fundamental principle that in a series circuit, the amperage is uniform across all devices.