Home » Power Calculations » 19 » b A current of 10 ampere rms at a frequency of 50 Hz flows through a 100 ohm resistor. The power dissipated is: a. 500 watt b. c. 10,000 watt d. 50,000 watt Your answer "b" is not correct. "c" is the right answer. P = I squared x R = 10 x 10 x 100 = 10,000 watts. (10,000 watts can also be referred to as 10 kilowatts or 10 kW) Next |