Is it possible to create a negative charge in fabric?

AI Thread Summary
Creating a predominant negative charge in fabric is technically possible, but its practical applications are limited. Touching a van der Graaff generator can demonstrate this effect, as it charges both the person and their clothing. However, once the charged individual steps off the insulating platform, the charge dissipates quickly. The discussion highlights the challenges of maintaining a negative charge in fabric for useful purposes. Overall, while the phenomenon exists, its utility remains questionable.
rvr1974
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Hi, I was wondering whether it was possible to create a predominant negative charge in fabric. Anyone have any ideas?
 
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Sure you can, but the question is what you want to do with it. If you touch a van der Graaff generator and your hair raises you are full of charge including your textiles, but when you step down from the insulating platform it is all gone. This is technically not very useful.
 
Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

So here is the motional EMF formula. Now I understand the standard Faraday paradox that an axis symmetric field source (like a speaker motor ring magnet) has a magnetic field that is frame invariant under rotation around axis of symmetry. The field is static whether you rotate the magnet or not. So far so good. What puzzles me is this , there is a term average magnetic flux or "azimuthal mean" , this term describes the average magnetic field through the area swept by the rotating Faraday...
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