What: "Voltage in an electrical circuit is like pressure in a water system. To say that voltage flows through a circuit is like saying that pressure flows through a pipe. Pressure can push water through a pipe, and it is correct to say that water flows through a pipe, but it is not correct to say that pressure flows through a pipe. The same is true for voltage. Voltage will push current through a wire, but voltage cannot flow through a wire. Voltage is often considered to be the potential to do something. For this reason it is frequently referred to as potential. Voltage needs to be present before current can flow, similar to how pressure must be present before water can flow."

Writer: Not Stated

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Date: Oct 2 2013 3:37 PM