Home » Power Calculations » 6 » d A current of 500 milliamp passes through a 1000 ohm resistance. The power dissipated is:   a.   0.25 watt   b.   2.5 watt   c.   25 watt   d.   250 watt Your answer "d" is CORRECT! P = I squared x R = 0.5 x 0.5 x 1000 = 250 watts. Next