In every way, the 2012 French Open women's singles final appeared to be a mismatch. Maria Sharapova, the winner of multiple grand slams, towered over Sara Errani, who was in her first grand slam final, in both size and stage presence. As the two 25-year-olds met at the net for their pre-match photographs, Errani barely cleared Sharapovaâs shoulder.
The term common is applied to the conductor that is used in any configuration of the circuit. It is easy to confuse common with the neutral wire, and in many cases this is true. A ceiling fan often has separate black and blue wires for the fan and light with the white wire, or neutral, being common to both.
Instead of terminals, a 3 way dimmer has 4 wires coming out of the casing: one common, two travelers and one ground wire. The common wire is usually black and the travelers red. In any case, the traveler wires will usually be the same color to distinguish them from the common wire.In this circuit the source hot is at the common on the 3 way switch and 3-wire cable runs from there to the dimmer.he common wire is usually black and the travelers red. In any case, the traveler wires will usually be the same color to distinguish them from the common wire. In this circuit the source hot is at the common on the 3 way switch and 3-wire cable runs from there to the dimmer.