Question

What is the basic principle of Ohm's law?

Answer 1

1. Ohm’s law states that the voltage across a conductor is directly proportional to the current flowing through it, provided all physical conditions and temperature, remain constant.
2. The mathematical expression for Ohm's law:
   $$\begin{gathered} \mathrm{potential}\mathrm{difference}\propto \mathrm{current} \\ \mathrm{V}\propto \mathrm{I} \end{gathered}$$
   Let us take $\mathrm{R}$as the proportionality constant
   $\mathrm{V}=\mathrm{RI}$
   here, $\mathrm{R}$is the resistance of the conductor
3. Hence, we can say that the basic principle of Ohm's law will be current is proportional to the potential difference.
4. The ratio of voltage to the current of a circuit gives us resistance
   $\mathrm{Resistance}=\frac{\mathrm{potential}\mathrm{difference}}{\mathrm{current}}$