A charge Q is placed at the center of an uncharged, hollow, conducting spherical shell. What is the electric field at a point outside the shell at a distance r from the center, and what is the net charge on the outer surface of the shell?
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Remember the key properties of conductors in electrostatic equilibrium:
- Electric field inside a conductor is zero.
- Any net charge on a conductor resides entirely on its outer surface.
- Induced charges distribute to cancel internal fields or maintain overall charge neutrality.