Electric current is a physical quantity that equals the electric charge passing through a cross-section of a conductor per unit of time:
$$I=\frac{q}{\Delta t}$$
where,
qβ charge passing through the conductor;
Δtβ time interval.
Unit of current intensity in the SI system is the ampere (A). The current in a wire is 1A if, in one second, the wire carries a charge equal to one coulomb (1C). The definition of a coulomb is based on the fixed value of the elementary charge, 1.602 176 634 Β· 10β19 A Β· s.
Electric Current FAQ
What is electric current?
It is electric charge passing through a conductor per unit time.
What is the formula?
I = q / Ξt.
