How much current is required to deliver 120 watts at a voltage of 12 volts DC?
0.1 amperes
10 amperes✓Ճիշտ պատասխան
12 amperes
132 amperes
Բացատրություն
Rearranging the power law gives I = P / E = 120 / 12 = 10 amperes. Choosing 12 amperes simply repeats the supply voltage and 132 amperes adds the two numbers.