Now I discuss about what is Ohm's law and Resistance
First we learn about Resistance ,
RESISTANCE. :-
It is property of a material.when we give electric supply it will oppose that flow.
Resister :-
It is material who provides resistance that means it stop flow of current supply.
OHM'S LAW. :-
When Temperature (T). And other physical quantities remain constant,the potential differences of a material is proportional to the current.
So if P.D = V
Current =I then V = IR
Hear R = Resistance units IS OHN
Resistance depends on same factor -1 length
If you don't understand I will give you one vedio about this,pls go through this vedio.
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