posted by Lee .
When a second light bulb is wired into an electric circuit already containing one light bulb, the first one dims. What kind of circuit is the light bulb wired into?
No. The bulb is wired into a SERIES circuit. If the first bulb did not dim and the second bulb burned as brightly as the first one, then it is a PARALLEL circuit. And if the bulbs are not burning at all, THEN there is an OPEN circuit. When the bulbs are burning there is a CLOSED circuit. I hope this helps.
I figured that after I posted my "Yas!" I graduated in Electrical Contruction...lol.