A component in an automobile 12-V electrical system has a resistance of 30 $\Omega$. How much current is in the component when in operation?

Question

Quizplus · Accepted Answer

The current in the component can be found using Ohm's Law: I = V/R, where V is the voltage in the circuit and R is the resistance of the component. In this case, V = 12 V and R = 30 Ω. Therefore, I = 12 V / 30 Ω = 0.4 A. Option B is the only choice that matches this answer.

A Component in an Automobile 12-V Electrical System Has a Resistance