A 4-W night-light is plugged into a 120-V circuit and operates continuously for 1 year. Find the

Question:

A 4-W night-light is plugged into a 120-V circuit and operates continuously for 1 year. Find the following:
(a) The current it draws,
(b) The resistance of its filament,
(c) The energy consumed in a year,
(d) Then show that for a utility rate of 15 cents/kWh the cost for a year's operation is $5.25.