Q6: A lightbulb marked “W [at] V” is screwed into a socket at one end of a long extension cord, in which each of the two conductors has resistance Ω. The other end of the extension cord is plugged into a -V outlet.
(a) Explain why the actual power deliv- ered to the lightbulb cannot be W in this situation.
(b) Draw a circuit diagram. (c) Find the actual power delivered to the lightbulb in this circuit.