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Anonymous
ANSWERS: 2
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think of electricity as a hose or pathway... there is speed width and pressure to the flow
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Good question. I'll explain and then give you an analogy. VOLTAGE is the potential which makes current flow. You cannot have current flow unless you have an applied voltage. CURRENT is the flow of electrons through an electrical circuit. You must have a voltage potential applied to the circuit AND there must be a complete, uninterupted path from one side of the voltage source to the other. ANALOGY: Think of plumbing. Water comes into your house from a water main at about 40 pounds per square inch pressure. This pressure is like the voltage: no water will flow without it. Now, no water will flow through the pipes unless you have a complete path from the water source to a place of lower pressure. So, if a valve in the piping is shut, no water flows. If you open a valve to your bath tub, you have completed the circuit which will allow water to flow through your pipes and into your bath tub. This is similar to flipping the light switch on to allow current to flow to a light switch. You may have voltage with no current flow. But you cannot have current flow without voltage. Questions?
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