Minggu, 26 Februari 2012

Electric shadows


As a beginner, it is important to be able to imagine the flow of electricity. Even if you've been lots of toll and lots of times how electricity is composed of electrons traveling across a conductor, it is still very difficult, to Cleary imagine the flow of electricity and how it is affected by Volt and resistors. Even if you've been told many times how much electricity and consists of an electron travels around the conductor, is still very difficult to clearly envision the flow of electricity and how it is affected by the Volt and the resistor. This is why I am proposing this simple analogy with a hydraulic system, the which anybody can easily imagine and understand, without pulling out complicated fluid dynamics equations. This is why I propose this simple analogy with the hydraulic system, which anyone can easily imagine and understand, without pulling out the complicated equations of fluid dynamics.Notice how the flow of electricity is similar to the flow of water from the point of high potential energy (high voltage) to the point of low potential energy (low voltage). In this simple analogy is water compared to electrical current, the voltage Difference is compared to the head difference Between tow water reservoirs, and finally the valve resisting the flow of water is compared to the resistor limiting the flow of current. In a simple analogy of water compared to the electric current, the voltage difference compared to the difference between the head water storage winches, and finally the valve retaining water flow compared to the resistor that limits current flow.
From this analogy you can deduce some rules That you should keep in mind during all your electronics work: From this analogy you can infer some rules you should keep in mind for all your electronics work:
Electric current through a single branch is constant at any point (exactly as you can not have different flow rates in the same pipe; what's getting out of the pipe must equal what's getting in) electrical current through one branch is constant at any point (exactly as You can not have different flow rates in the same pipe; what comes out of the pipe should be the same as what was in.)
There wont be any flow of current Between 2 points if there is no potential difference Between Them. There wont be any flow of current between two points if there is no potential difference between them. In other words, for a flow of current to exist, there must be a voltage difference Between tow points. In other words, for the flow of current to exist, there must be a voltage difference between the tow point.
The quantity of water in the reservoir can be compared to the electric charge stored in a battery. The amount of water in the reservoir can be compared with the electric charge stored in the battery. When the level of water in the tow tanks Become the same, there is no more flow of water, and comparatively, a battery is empty and can not deliver anymore when the tow current electrodes have the same voltage. When the water level in the tank the crane to be equal, no more flow of water, and the relative, the battery is empty and can not deliver more current at the electrode crane has the same voltage.
The electric current in a conductor will increase of with the Decrease of the resistance, exactly as the rate of flow of water will increase of with the Decrease of the resistance of the valve. Electric current in a conductor will be increased with a decrease in resistance, just like the water flow rate will increase with decreasing resistance of the valve.

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