Question

Which of the following depicts the mathematical form of Ohm’s Law?

• A. $I=\frac{R}{V}$
• B. $R=\frac{I^2}{V}$
• C. $V=\frac{I}{R}$
• D. $I=\frac{V}{R}$

Answer 1

The correct option is D

$I=\frac{V}{R}$

Ohm’s Law states that potential difference, $V$ is proportional to the current, $I$ and the constant of proportionality is the resistance, $R$.

i.e., $V=I\times R$

Hence, $I=\frac{V}{R}$