I picked the bathroom. The type of circuit I built is a series circuit. There are two lightbulbs, one battery, conducting wires and a switch. The circuit works because it is complete and the electrons can pass through the lightbulbs to give them energy to light up. The electrons go through the circuit until the battery dies. In a series circuit the current is the same no matter where you measure it. I picked a series circuit for the bathroom because it is a small room which means a parallel circuit would not be needed, the circuit I have made has lightbulbs closer than they would be if they were in parallel. That is why a series is more practical.