Question

If a 10.0 W device pulls 2.0 A of current, what voltage exists across it?5.0×10^3 V5.0×10^2 V5.0×10^1 V5.0×10^0 V

Answer 1

To solve this problem, we have to use the following expression

`V=(P)/(I)`

Where P = 10.0 W and I = 2.0 A. Let's use these values to find the voltage (V).

`\begin{gathered} V=(10.0W)/(2.0A) \\ V=5.0V \end{gathered}`

It's important to know that 5.0 is equivalent to 5.0×10^0 because every power with a null exponent is equal to 1.

Therefore, the voltage is 5.0×10^0 V.