Electricity means the flow of charge.
Electric Current :The rate of flow of electric charge through any cross section of a conductor in unit time is called electric current.
Electric Current (I) = charge(q)/Time(t)
The S.I unit of electric current is Ampere(A).
Electric potential : The amount of work done in bringing a unit positive charge from infinity to that point.
S.I unit of electric potential is Volt(V).