1. The problem statement, all variables and given/known data 2. Relevant equations no equations 3. The attempt at a solution I know that we will have an equal current flowing through bulbs 1 and 2 when we connect them in parallel in accordance with kirchoff's voltage law which says that the voltage drops around both paths must be equal to 0, i.e., THE SAME. Thus, bulb three will have an increased current through it, as connecting 1 and 2 in parallel will decrease the circuits overall resistance, increasing the current drawn from the battery, and increasing the current through bulb 3 which will increase its power and make it glow brighter. OK, I get that. Why bulb 2 does not glow brighter also? An increased overall current could mean that we have greater current through the branch of the current where bulb 2 is, increasing its power, and brightness. Thanks in advance for the input!