The stream or rate of electric charge in a conductor or medium between two points having a deviation in potential is generally expressed in amperes. Current flow is due to the difference of potential between two points. The flow of direction is opposite of electron flow directions.
In electric circuits, this charge is often carried by electrons in a wire. It can also be transmitted by ions in an electrolyte., or by both ions and particles such as in a plasma. It is evident that the resistance to current flow is a constant so that the current flow in the circuit is related to voltage and resistance by Ohm’s law.
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