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Revision as of 10:56, 18 October 2014

Click here to go back to classroom demonstrations

Candle in the Wind

An electric field can breakdown the insulation properties of air. This creates a mass of oppositely charged ions and electrons that can be pulled towards opposite directions inside the electric field. In this demonstration, we use the plume of a candle flame as the course of plasma. This is a rich structure and would bifurcate into two streams of ions - ionic winds! - moving in opposite directions. The winds can be strong enough to extinguish the flame.

Also see: Excitation by electric fields

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