Current (electricity)

In electricity, current refers to electric current, which is the flow of electric charge. Lightning is an example of an electric current, as is the solar wind, the source of the polar aurora. Probably the most familiar form of electric current is the flow of conduction electrons in a metallic wire. This is how utility companies deliver electricity. In electronics, electric current is most often the flow of electrons through conductors and devices such as resistors, but it is also the flow of ions inside a battery or the flow of holes within a semiconductor.

Related Topics:
Electricity - Lightning - Solar wind - Polar aurora - Conduction - Electrons - Electronics - Conductors - Resistor - Ions - Battery - Holes - Semiconductor

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