Electric current is the rate at which electric charge flows through a conductor. Mathematically, the current is defined as the amount of charge passing through a given point in the conductor per unit time:
I = Q / t
where I is the current (in amperes), Q is the electric charge passing through the conductor (in coulombs), and t is the time taken for the charge to pass through the conductor (in seconds).
This relationship between charge and current means that, for a given current, the amount of charge that passes through the conductor in a given amount of time is proportional to the current. Similarly, for a given amount of charge passing through the conductor, the current is inversely proportional to the time taken for the charge to pass through.
This relationship can be used to calculate the current flowing through a conductor if the amount of charge passing through it and the time taken are known or to calculate the amount of charge passing through a conductor if the current and time taken are known. It can also be used to analyze and design electrical circuits and to calculate the behavior of electrical components such as resistors and capacitors.
