First we need to convert the power from horsepower (hp) into watts. Since [tex]1 hp=736 W[/tex], we have [tex]P=2.25 hp \cdot 736 W/hp=1655 W[/tex]
Then we know that the electrical power of a device is the product between the voltage and the current: [tex]P=VI[/tex] So if we re-arrange this equation, we get the current flowing in the circuit: [tex]I= \frac{P}{V}= \frac{1655 W}{10.0 V}=165.5 A [/tex]