P = EI = 120 * 0.5 = 60W
1W = 1J/s, so
60W = 60J/s * 900s = 54000J
An electric light is plugged into a 120-V outlet. If the current in the bulb is 0.5 A, how much electrical energy is used by the bulb in 15 minutes?
4 answers
ert
A toaster is plugged into an outlet where the voltage difference is 120 V. How much power does the toaster oven use if the current in the oven is 10 A?
6. A video-disc player is not playing still uses 6.0 W of power. What is the current into the video-disc player if it is plugged into a standard 120-V outlet?
2 answers