Voltage Analogy

Voltage is energy per unit charge.

Voltage analogy. The electronic hydraulic analogy derisively referred to as the drain pipe theory by oliver lodge is the most widely used analogy for electron fluid in a metal conductor since electric current is invisible and the processes in play in electronics are often difficult to demonstrate the various electronic components are represented by hydraulic equivalents. Thus here v shows the voltage. Rotational mechanical system is shown in the following figure. Our mission is to provide a free world class education to anyone anywhere.

Voltage is represented in equations and schematics by the letter v. This is one i use to explain the difference to my customers imagine your water faucet inteh front yard. A common choice is to make pairs of power conjugate variables analogous. By itself that is not enough to fully define the analogy a second variable must be chosen.

The masses in the mechanical system is replaced by the capacitors in an electrical network. The impedance analogy makes force and voltage analogous while the mobility analogy makes force and current analogous. Nothing is coming out of the hose you have screwed onto the faucet. Question is in force voltage analogy velocity is analogous to options are a current b charge c inductance d capacitance e leave your comments or download question paper.

The water is there waiting for you to turn on the faucet but. The voltage is equivalent to the water pressure the current is equivalent to the flow rate and the resistance is like the pipe size. Similarly there is torque voltage analogy for rotational mechanical systems. See you next time.

Also as the current was regarded as the output in case of force voltage analogy here voltage is regarded as output for force current analogy. Where x represents displacement and v represents the velocity. So this is a pretty good analogy for thinking about voltage as you begin to build your circuits. There is a basic equation in electrical engineering that states how the three terms relate.

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. When describing voltage current and resistance a common analogy is a water tank. A neat analogy to help understand these terms is a system of plumbing pipes. In this analogy the mathematical equations of rotational mechanical system are compared with mesh equations of the electrical system.

Let us now discuss about this analogy.