Electric field inside hollow conductor with a charge

AI Thread Summary
In electrostatic equilibrium, charges in a hollow conductor rearrange to cancel the electric field within the conductor itself, but not inside the cavity where a point charge is located. The electric field produced by the point charge remains unaffected by the conductor's charges, as they cannot move freely to the cavity due to the constraints of being a "hollow" conductor. This means that while the conductor's outer surface can respond to external fields, the internal field from the point charge persists. The absence of a nonzero electric field inside the conductor ensures there is no acceleration of charges, maintaining electrostatic equilibrium. Thus, the electric field inside the cavity remains as determined by the point charge alone.
Tiago3434
Ok, this might be a really dumb question, but I still am asking it: I was reading about gauss' Law when it comes to a hollow conductor with a (say) point charge inside it, and it seems intuitive to me that, in electrostatic equilibrium, the charges rearrange themselves to cancel the electric field inside it, after all, if there were a nonzero electric field, there would be acceleration, which violates the idea that the system is in electrostatic equilibrium. Here is the q: is there a reason (or intuition, perhaps) as to why the charges don't rearrange themselves to cancel all electric field inside it, including inside the cavity, where the point charge lies?
 
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For this to happen, you would need a charge density in the shell which produces an electric field inside the shell with the form ##-kq/r^{2}\;\hat{r}## to cancel out the electric field from the point charge. However, there is no arrangement of charge density in a spherical shell which can produce such an electric field inside the shell.
 
Tiago3434 said:
...after all, if there were a nonzero electric field, there would be acceleration, which violates the idea that the system is in electrostatic equilibrium.

A charge is not affected by the electric field that it produces, so no acceleration.
 
The charges can't go just anywhere. By definition of a "hollow" conductor, they are constrained to move only inside the conductor. If not, they would move to the place where you placed your internal charge and cancel it out.
 
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