Question

✨❤️Heya❤️✨

What is Ohm's law !​

Answer 1

Answer:

heya mate

the law in which the current in a circuit is directly proportional to voltage across the circuit and inversely proportional to the resistance of the circuit is called ohm's law.

hope it helps u ❤❤❤

Answer 2

$\huge\underline\green{\sf Ohm's\:Law:-}$

Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

DERIVATION OF OHM'S LAW :-

J =$\sf{\sigma}$E

$\large{\sf {\frac{I}{A}}={\sigma}{\frac{V}{l}}}$

$\large{\sf {\frac{I}{A}}={\frac{V}{\rho l}}}$

$\large{\sf V={\frac{\rho l}{A}}I}$

$\huge\red{\boxed{\sf V = RI}}$

Here,

l = length of conductor

V = Voltage applied across conductor

$\large{\sf \sigma ={\frac{1}{\rho}}}$

$\large{\sf \rho}$= Resistivity

$\large{\sf R={\frac{\rho l}{A}}}$

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