Question

What is meant by electric current? Define its SI unit. In a conductor electron are flowing from B to A. What is the direction of conventional current

Answer 1

the charge flowing through a particular area in a unit time is known as electric current .
or
it can be defined as the rate of flow of electrons.
the current is represented by I

the SI unit of current is AMPERE.
ONE AMPERE can be defined when 1 coloumb of charge flows through a conductor in one second.
1 ampere = 1 coloumb / 1 second .

the direction of electron is opposite as when conventional current flows through a conductor then the directiion is opposite.
the conventional direction of electric current is from positive terminal of a cell to the negative terminal.

Answer 2

It is a continuous and closed path made of conducting wire, through which the electric current flows. it consist of a cell,ammeter,voltmeter, switch etc

SI unit of current is Ampere (A)

When 1 coulomb of charge flows through a wire in 1 second then it is said to be 1 Ampere

1A = 1C/1s