Question

Give the definition of an electric current and define its unit.Answer the given questions in brief.

Answer 1

Definition ⇒ ''Current is the rate of the flow of charge''.

Mathematically Current can be expressed as,

Current = Charge/Time.

or I = Q/t

where, Q is the charge, I is the current and t is the time.

The unit of the current is A or C/s.

Its dimensions is [A] since it is the fundamental quantity of S.I. System.

''One Ampere is defined as the current which flows when the charge of 1 Coulomb passes from the conductor in 1 seconds''.

Hope it helps.