Question

state ohm's law & describe its verification

Answer 1

ACCORDING TO OHM'S LAW AT THE CONSTANT TEMPERATURE POTENTIAL DIFFERENCE IS DIRECTLY PROPORTIONAL TO CURRENT, 
WE CAN SHOW IT AS,
V≈I [WHERE R IS CONTANT.
IT ALSO WRITE AS V= IR
                                  I=V/R
                                 R= V/I
                                                  PLZ MARK IT BEST                                         

Answer 2

according to ohm's law,V=IR
where,I=current
V=potential
R=resistence
it is valid only at constant temp.
units of resistence is Ohm or volt per ampere
the opposition to flow of electrons or current is called resistence
it is the fundamental electrical property of a substance
conductors obey ohm's law