Question

If the resistance of a circuit is 3 ohms, and the voltage produced by the cell in the
circuit is 12 volts, what's the magnitude of the current?
0.25 amperes
09 amperes
36 amperes
4 amperes

Answer 1

Answer:

The magnitude of the current is 4A (amperes).

Explanation:

We can use $V=IR$, where V stands for Voltage, I stands for current, and R stands for resistance to solve this problem.

A such:

$V=12\\I=\text{ ?}\\R=3\\\\\text{Solve for I}:\\12=3I\\3I=12\\I=\frac{12}{3}\\I=4\text{A}$