Visualizing Electric Fields: Techniques and Experiments

[ebypk]

Hi All,

See, if you place a paper above a magnet and put some iron filings, we can visualize the concept of magnetic field. My question is : Is there any such experiment/technique to really visualize (see) the electric field by a charge ?

Waiting for comments and discussions...

Thanks...

 

[cragar]

Yes you can see the E field lines with grass seeds in oil.
Walter lewin does this around the 43 minute mark , but you should watch the hole video.
And i think he also shows you how an electric dipole acts in an E field.