Voltage Current And Resistance Analogy
For this reason the quantities of voltage and resistance are often stated as being between or across two points in a circuit.
Voltage current and resistance analogy. This is one i use to explain the difference to my customers imagine your water faucet inteh front yard. In electrical engineering there is a basic equation that explains how voltage current and resistance relate. The voltage is equivalent to the water pressure the current is equivalent to the flow rate and the resistance is like the pipe size. We can extend the water analogy to understand resistance too.
The higher it is the more potential energy the water has by virtue of its distance from the bottom of the falls and the more energy it will possess as it hits the bottom. A simple analogy would be to compare a garden hose to a fire hose. The voltage is equivalent to the water pressure the current is equivalent to the flow rate and the resistance is like the pipe size. The water is there waiting for you to turn on the faucet but.
A fire hose hooked directly to a hydrant has lots. Current voltage resistance and power are the four basic properties of electrical circuits. There is a basic equation in electrical engineering that states how the three terms relate. When describing voltage current and resistance a common analogy is a water tank.
A basic electrical engineering equation called ohm s law spells out how the three terms relate. Current is equal to the voltage divided by the. In this analogy charge is represented by the water amount voltage is represented by the water pressure and current is represented by the water flow. The garden variety he he has significant pressure voltage and moderate volume amperage capacity and works well in the yard.
This action packed lesson introduces current as a flow of electrons and explains the relationship between current voltage and resistance using the analogy of a diver using up energy obtained from food and giving off heat as they swim through pipes filled either with water low resistance or water and rocks high resistance. In this analogy voltage is equivalent to water pressure current is equivalent to flow rate and resistance is equivalent to pipe size. The mountain analogy in this article will help you to understand these properties. Nothing is coming out of the hose you have screwed onto the faucet.
If we draw an analogy to a waterfall the voltage would represent the height of the waterfall. The amount of current in a circuit depends on the amount of voltage and the amount of resistance in the circuit to oppose current flow.