electret, and permittivity
Great way of putting it! So are there any conductive materials that are known not to create a magnetic field when current is applied?
So what does this mean for an electret?
From what I know (correct me if I'm wrong) an electret is permanently polarized, thus giving it a permanent electrostatic charge, making it the electrostatic equivalent of a permanent magnet. But how does this affect it's relaxation time? And how does an electret fit in with what we've discussed above?
Good luck with the table! I would like to see it when done.
I am also trying to make one - it seems finding out a materials conductivity is as easy as pie, but getting it's permittivity is not so easy. Any ideas how we can get this?
Great way of putting it! So are there any conductive materials that are known not to create a magnetic field when current is applied?
So what does this mean for an electret?
From what I know (correct me if I'm wrong) an electret is permanently polarized, thus giving it a permanent electrostatic charge, making it the electrostatic equivalent of a permanent magnet. But how does this affect it's relaxation time? And how does an electret fit in with what we've discussed above?
Good luck with the table! I would like to see it when done.
I am also trying to make one - it seems finding out a materials conductivity is as easy as pie, but getting it's permittivity is not so easy. Any ideas how we can get this?
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