How many conductors are counted for the yoke or strap containing one device?

When counting the conductors for the yoke or strap containing one device, it's essential to consider how the wiring is typically organized in a standard installation. In this context, a yoke or strap holding a device generally refers to the physical support structure that holds a device, like a light switch or an outlet.

For a single device, the common practice is to account for two conductors: one for the hot wire that supplies power to the device and one for the return path, which is typically the neutral wire. This is consistent with the basic principle of electrical circuits, where a complete path is required for current to flow.

In certain scenarios, you might count additional conductors if there are other specific requirements, such as grounding or if the device uses a traveler wire in a switch configuration, but for the purpose of a basic yoke containing a single device, the standard consideration remains two conductors. Hence, the answer is two conductors, as it reflects the common practice in residential and commercial wiring installations.