what is ohms law ?

ohms law states that current in a conductor between any two points is directly proportional to potential diff, and inversely proportional to resistance.

mathematically, it is V=iR

here V- potential diff

        i-current

       R-resistance

Ohm's law states that the current through a conductor between two points is directly proportional to the potential difference or voltage across the two points, and inversely proportional to the resistance between them

I α V

I α 1/R

I = V/R

V = IR

 

please approve

When the physical conditions like temperature,mechanical strain etc. remains unchanged,the current flowing through a conductor is always directly proportional to the potential difference across its two ends. I=V/R where R is the constant of proportionality