Question

Which of the following relations represent the Ohm's law?
$V=$Voltage, $I=$Current, $R=$Resistance

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

Answer 1

Answer: (B), (C)

$V=I\times R$

According to Ohm's law, the ratio of potential difference and current is a constant known as electrical resistance provided that physical condition such as temperature, humidity etc. is kept constant.
$\frac{V}{I}$ = $R$ (constant) where, $V$ is a potential difference, $R$ is electrical resistance and $I$ is current.
$\frac{I}{V}$ = $\frac{1}{R}$ (constant)

$\Rightarrow V=IR$.