Electricity 101 Tutorial

 Here are a few of the fundamentals that will help you understand the rest of the electrical firing section. Fundamental Basics of Electricity What is Voltage? Potential Difference, more commonly known as Voltage, is the difference in electrical potential between two points. What?! Let's use an analogy of a water piping system. Lets say we have a short length of pipe, and wanted to continuously pump water from one end to the other. At first, when no water is flowing, there is no pressure difference between one end of the pipe and the other. So in order to get water to flow, we must create a pressure "differential" between the two ends of the pipe. So, we would use a pump at one end which would raise the pressure; thus, "pushing" the water through the pipe. This is how your garden hose works in your back yard. Electric Potential (Voltage) works in a similar fashion. The Voltage is the "water pressure" pushing the electrical current through the wire. This of course is simplified drastically. What is Current? What are Amps? Electric Current is the flow of electric charge per unit area. Amps are the units of Current. For example, you would say, the circuit is producing 5 Amps of current. Going back to our water pipe analogy, if the "pressure" produced between the ends of the pipe is analogous to voltage, then the flow of water (the water current) is analogous to the flow of electric charge, or current in the wire. So, to sum it all up, the voltage causes the current (in most cases).