Home » Power Calculations » 6 » c A current of 500 milliamp passes through a 1000 ohm resistance. The power dissipated is: a. 0.25 watt b. 2.5 watt c. d. 250 watt Your answer "c" is not correct. "d" is the right answer. P = I squared x R = 0.5 x 0.5 x 1000 = 250 watts. Next |