Electric Current
What is Electric Current
Discussing electrical engineering or physics without discussing electric currents is impossible. In this context, "conduction" means moving electric charges along a wire or other conductor. Among the many notable contributions of French physicist André-Marie Ampère to developing the idea of electric current is the ampere (A), the unit of electric current.
When there is a difference in electric potential (voltage) between two places in a conductor, electric charges travel from higher to lower potential, creating an electric current. The presence of an electric field, which acts as a driving force on the charges, is usually responsible for this movement of leaders. If positive charges were free to move in any direction, that would be the direction in which the electric current would flow.
Electric Current equation
The rate of electric current is equal to the charge per unit of time that flows through a conductor. Namely, I = Q/t, where I is the electric current, Q is the charge, and t is the time the charge flows. Ohm's Law asserts that the electric current I is equal to the quotient of the voltage across the conductor and the resistance of the conductor, written as I = V/R.
Powering electronics, creating electromagnetic fields, and transferring data over long distances are just a few of the many uses for electric current. Modern electronic gadgets rely on transistors, which are manipulated by electric currents. To cure a wide range of medical issues, electric currents are also used in medicine to activate nerves and muscles.
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