Question

calculating voltage
a toy car has a 1.5 - a current, and its resistance is 2 ω. how much voltage does the car require?

Explanation:

Step1: Recall Ohm's law

$V = I\times R$

Step2: Substitute values

$I = 1.5$ A, $R=2$ $\Omega$, so $V=1.5\times2$

Answer:

3