Five identical bulbs and an ideal battery are arranged in a circuit as shown at right. The switch is open. (a) Rank the six elements (the five bulbs and the battery) ac- A cording to the amount of current through them. Explain your reasoning. E (b) How does the current through Bulb E change, if at all, when Battery the switch is closed? Explain. B (c) How does the current through Bulb A change, if at all, D when the switch is closed? Explain. (d) How does the potential difference across Bulb B change, if at all, when the switch is closed? Explain