I know just the basics of electricity and am trying to replace an older dimmer switch that broke with a new very similar switch.
The old switch is not connected to ground. The new switch has the green ground wire. I also see a couple of additional connections inside the junction box but can't tell what they are for.
I would appreciate help with (see pictures below): 1. Any idea what the other connections are for (black is for the switch, what are the white and copper colored ones for)? 2. Do I need to connect the ground wire to anything? If yes, to what?