Answer:
A
Step-by-step explanation:
The formula that relates current, power and resistance is
[tex]I=\sqrt{\frac{P}{R}}[/tex]
Where
I is the current (in amperes)
P is the power (in watts)
R is the resistance (in ohms)
We know P = 500 and R = 25, we plug them into the formula and solve for I:
[tex]I=\sqrt{\frac{P}{R}}\\I=\sqrt{\frac{500}{25}}\\I=\sqrt{20}\\ I=4.47[/tex]
Correct answer is 4.47 Amperes, or choice A.