Solve the problem.
-According to Ohm's law, the electric current $I$, in amperes, in a circuit varies directly as the voltage V. When 18 volts are applied, the current is 2 amperes. What is the current when 22 volts are applied?
A) 42 amperes
B) 2.44 amperes
C) 9 amperes
D) 198 amperes

Question

Quizplus · Accepted Answer

Ohm's law states $I = \frac{V}{R}$, where $I$ is current, $V$ is voltage, and $R$ is resistance. Given $I = 2$ amperes at $V = 18$ volts, we find $R = \frac{18}{2} = 9$ ohms. For $V = 22$ volts, $I = \frac{22}{9} \approx 2.44$ amperes.

Solve the Problem III , in Amperes, in a Circuit Varies Directly as the I

Solve the Problem $I$ , in Amperes, in a Circuit Varies Directly as the I