How much current is required to deliver 120 watts at a voltage of 12 volts DC?
Rearrange P = E × I to I = P ÷ E. Dividing 120 watts by 12 volts gives 10 amperes.
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Rearrange P = E × I to I = P ÷ E. Dividing 120 watts by 12 volts gives 10 amperes.