The circuit at right shows four identical bulbs connected to an ideal 6V batteryr and a switch that is initially closed. A Rank the bulbs in order from brightest to dirrunest. If two bulbs have the same brightness, indicate that explicitly. Explain how you determined the ranking of the bulbs. Draw arrows to trace the path of current from the battery. The switch is now opened. Will the current through bulb A increase, decrease, or remain the some? Explain how you determined your answer. Draw arrows to trace the path of current from the battery. A student attaches a voltmeter across each of the bulbs. (The switch is still open.) What are the readings she obtains on her meter? Explain your reasoning. Bulb A: Bulb B: Bulb C: Bulb D