Question

WhAt is ohms law and mathematical expression for this

Answer 1

ohms law gives a relationship between current and potential difference .according to Ohms law:At constant temperature,the current through a conductor is directly proportional to the potential difference across its ends.
if I is the current flowing through a conductor and V is the potential difference across its ends .then according to ohms law:
see this attachment for full ans

Answer 2

Hey there!

Thank you for your Question!

Ohm's Law:

According to Ohm's law, under constant physical conditions of temperature and pressure, the current flowing through the conductor is directly proportional to the Voltage or potential difference across the ends of the terminals.

i.e $\bold{\boxed{V\propto I}}$

or, $\boxed{\frac{V}{I} = constant = R}$

Equation for Ohm's Law:

$\boxed{\textbf{V = I R}}\\\textbf{where,}\\V = \textbf{Potential difference}\\I = \textbf{Current}\\R=\textbf{Resistance}$

Good Studies!