Can you change from 10 or 8 gauge wire to 12 gauge in a 20amp circuit?
I know it's okay to use a higher than needed gauge from the panel out, but I don't know if it's okay to continue out from the current outlet with my 12-2 to the new outlets. Would variation in voltage be an issue? All in all, I plan to add an additional 5 outlets. Besides that, I'm following standard configuration with 12-2 wire (2-pair+ground), and pig-tailing the grounds.
Would I be okay to mix them like this?