Question

In a home that has 120 V service, there is an electric appliance that has a resistance of 12 ohms. how much power will this appliance consume? A. 10 W B. 120 W C 1200 W D. 1440 W

Answer 1

The formula normally used for Voltage Power and Resistance is

P = E^2/R

E = 120 V

R = 12 ohms.

P = 120^2/12

P = 1200 watts.

Answer: C