4. A particular type of lightbulb is rated at 60 Watts in the U.S. (15 pts)

A) Find the resistance of the lightbulb.

B) Compared to a single lightbulb, how much total light would be produced if the two lightbulbs are connected in *series*? (Twice as much, half as much, the same, other...?) Show a calculation to justify your answer. (Hint: You need energy to make light!)

C) Compared to a single lightbulb, how much total light would be produced if the two lightbulbs are connected in *parallel*? Show a calculation to justify your answer.