How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes?

This question requires another straightforward application of the power formula, P = I × E. We are given a voltage (E) of 12 volts and a current (I) of 2.5 amperes. By multiplying 12 volts by 2.5 amperes, you calculate a total power of 30 watts. Think of it as multiplying 12 by 2 (which is 24) and then adding half of 12 (which is 6) to reach exactly 30. The distractors come from misapplying the math: 4.8 is 12 divided by 2.5, 14.5 is 12 plus 2.5, and 0.208 is 2.5 divided by 12. Always remember to multiply voltage and current to find power.