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If we are talking about discharge through a gas such as the atmosphere, this is a breakdown in the normally insulating gas due to ionisation of the gas molecules and hence conduction of current, the discharge will cause visible light to be emitted. This is lightning in nature.

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7y ago
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13y ago

When something has a buildup of net charge, getting rid of that charge is "discharging" it. For example, two metal plates near each other, but not touching (called a capacitor) will build up equal and opposite amounts of charge when connected to a battery. When the battery is disconnected the plate charges will remain. You can discharge the plates by placing a conductor (metal object) across the two plates. The chages aren't destroyed, just allowed to move from one plate to the other so the number of positive & negative charge on each plate is equal and resulting in no net charge buildup. Sometimes the charge buildup is large enough that it will discharge thru the air and you see it as a spark.

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10y ago

A static charge is just an excess (or lack) of electrons from the surface atoms of a substance, always a non-conductor.

The discharge occurs when the "free" electrons find a low resistance path to ground.

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7y ago

When a static charge builds up on an object, this is an unstable situation, and is unlikely to last long. The charge may dissipate gradually, e.g. carried away in small amounts by particles in the air, or it may all equalize at once, and this is referred to as a discharge. If a cloud gets charged up, eventually the charge may jump to earth, which is what we call lightening. (The flash is caused by ionization along the path the charge travels.) If you touch a charged object, the charge may flow through you to the Earth, and you may feel a shock.

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11y ago

Discharging a static charge through an electronic component can damage it.

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15y ago

lightning is an example of electrical discharge

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13y ago

It is caused because the loss of static electricity as charge move off an object.

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Q: Is lightning a electrical discharge
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