Question

Define electric current. Write SI Unit . Derive an expression for electric current in term of no of electron in a metallic conductor

Answer 1

Answer:

Explanation:

An electric current is the rate of flow of electric charge past a point or region. An electric current is said to exist when there is a net flow of electric charge through a region. In electric circuits this charge is often carried by electrons moving through a wire.

Ampere is SI unit.

actually the correct answer for this quetion is as follows :-

=> ne = q ---> 1

=> n = q/e ---> 2

therefore , electric current = number of electrons ( n = q/e )

time taken.

Hope it helps you.

Answer 2

Answer:

Electric current :

Electric current is basically the flow or charge of the electric charge in motion in a conductor. It is said to exist when there is net flow of the charge through the region.

SI UNIT OF ELECTRIC CURRENT IS AMPERE

ne = q. -------1

n= q/e. -------2

Therefore electric current = number of electrons

(n=q/e) /time taken