There is a cable that runs from the house to the front lawn, and was probably used for a light post at some point. I've traced it as far as possible, but it disappears underground at a depth of over 6 inches and I'm not able to continue looking for the cable end. There is a switch that does not appear to control anything inside by the front door, which MAY control this wire.
To confirm this before disconnecting and capping wires at the switch, I'd like to make a small cut (power off) in the section of the wire I can access and check for power with my multimeter (power back on), while flipping the switch on and off.
Is this feasible and safe? Easier way? Thanks in advance from a cautious newbie.