Question

what is electric current? Formula and SI unit

Answer 1

The rate of flow of charge is called electric current.
si unit .ampere denoted by I.
formula I=q/t

Answer 2

Electrical current is a measure of the amount of electrical charge transferred per unit time. It represents the flow of electrons through a conductive material. 

Current is a scalar quantity (though in circuit analysis, the direction of current is relevant). 

I= Q/t

I= Current

Q= charge

t= time

The SI unit of electrical current is the ampere, defined as 1 coulomb/second.