Can anyone share a reference to a favorite explanation of "electrostatic
shielding" (at the level of calculus-based introductory physics)?
Also, in the process of seeking a satisfactory explanation, I tried A. D.
Moore's little book on electrostatics. In Moore's discussion of Faraday's
cage experiment, he says:
" . . . . He proved that any electric field he might set up outside of the
cage had no effect whatever on detection instruments placed inside.
Likewise, fields set up inside had no effect outside."