Building Circuits Make a series circuit with one bulb, then two, then three. Make observations as you add bulbs a "Hint before getting going. The voltage of the battery will always stay the same throughout this lab. The battery's voltage is printed on the battery. We will be using a constant 3.0 volt battery. (Two D cell batteries together) 1. What happens to the brightness of the bulbs each time you add another bulb in series? 2. What happens to the resistance of the circuit each time you add a bulb? 3. What happens to the current each time you add a bulb? (hint, Ohm's law. I = V/R. Consider your answer to number 2 to help you answer his one )