Wiring a Single Pole Switch
Question: Your example shows 2 wire Romex but most Romex I have seen has three wires one white-one black and an un-shrouded copper ground wire. What is the correct connection for this ground wire?
Answer: As explained in this page above: These Type-NM cables contain a ground conductor which is required for all applications as well. The ground conductors are always bonded together to insure the integrity of the ground path.