Electrostatic Levitation

  • #1
anything.john
1
0
Any knows how electrostatic levitation works?

I know it is the process of using an electrostatic field to lift a charged object, but how does it work? what goes on in the atoms in the dust and with the electric field?
 

Answers and Replies

  • #2
Andy Resnick
Science Advisor
Education Advisor
Insights Author
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The electrical force F = qE balances the gravitational force F = mg. Not much more than that.
 
  • #3
diegzumillo
173
18
You may be referring to those toys that keep something floating in the air. it's still what anything.john said. but some of them are more interesting, they use a collection of three (or more) sensors on the base and a single electromagnet placed under the object, the sensors send the signal to a little processor that controls the electromagnet to keep the object from falling. this way you can tap it that it won't slide away.
those things are fun! :)
 

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