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(physics) The electric current; charge transmitted per unit time, measured in amperes.

A simple electric circuit, where current is represented by the letter i. The relationship between the voltage (V), resistance (R), and current (i or I) is V=IR; this is known as Ohm's law.

(physics) The electric current; charge transmitted per unit time, measured in amperes.

The electrons, the charge carriers in an electrical circuit, flow in the direction opposite that of the conventional electric current.

(physics) The electric current; charge transmitted per unit time, measured in amperes.

A magnetic field is produced by an electric current in a solenoid.