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Have you ever been curious about how a light bulb works? The cause is, of course, electric current. The flow of electric charge across an electric field is known as electric current. The rate of charge flow is referred to as current. Moving electrons produce it, which is measured in amperes. A conductor, generally a copper wire, is required for current to flow. When you conceive of electricity, it's like imagining a river flowing from one point to another. Electric current works in the same way: electrons flow from one location to another.