Electric current is the flow of electric charge through a conductor. More specifically, it is defined as the rate of flow of electric charge past a point or region.

Here are some important aspects of the definition:

• Charge Carriers: The charge carriers can be electrons (in metal wires), ions (in electrolytes), or both.
• Direction: Conventionally, the direction of current is taken as the direction of flow of positive charge, even though in most conductors (like metal wires) it is the negatively charged electrons that are moving.
• Measurement: Electric current is measured in amperes (A), where one ampere is equal to one coulomb of charge flowing per second (1 A = 1 C/s).

For more information, you can refer to these resources:

• Hyperphysics: http://hyperphysics.phy-astr.gsu.edu/hbase/electric/elecur.html
• All About Circuits: https://www.allaboutcircuits.com/textbook/direct-current/chpt-1/what-is-electric-current/