How much current is required to deliver 120 watts at a voltage of 12 volts DC?

To solve this problem, you need to use Watt's Law, which states that Power equals Voltage multiplied by Current (P = E x I). In this formula, P is power in watts, E is voltage in volts, and I is current in amperes. Since the question asks for current, you must rearrange the formula to solve for I, which gives you I = P / E. Plugging in the numbers provided in the question, you divide the power (120 watts) by the voltage (12 volts). 120 divided by 12 equals 10 amperes. Distractors like 132 or 0.1 result from incorrectly adding the numbers or dividing voltage by power.