Thursday, January 9, 2014

Lightning





Lightning is a natural phenomenon that can we analogy with a giant capacitor , wherein the first plate is the cloud (can be negative or positive plate plates) and the second plate is of the earth (considered neutral) . As already known capacitor is a passive component in an electrical circuit that could store the instantaneous energy (energy storage) . Lightning can occur from cloud to cloud (intercloud) , where one cloud of negatively charged and the other positively charged cloud .

Lightning occurs because there is a potential difference between the cloud and the earth or to other clouds . The process of charge on a cloud as he moves continuously on a regular basis , and during the movement he will interact with other clouds that are gathering a negative charge on one side (top or bottom) , while the positive charge gathered on the reverse side . If the potential difference between a cloud and the earth is large enough , there will be a discharge of negative charge (electrons) from the cloud to the earth or vice versa to achieve equilibrium . In this dumping process , the media through which the electron is air . By the time the electrons are able to penetrate this threshold insulating air explosion sound . Thunderstorms are more common during the rainy season , due to the state of air containing a higher water content so that power down insulation and current flows more easily . Because there is a cloud of negatively charged and positively charged cloud , the lightning can also occur between different cloud charge .

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