Question 1
A series of 3 uncharged concentric shells surround a small central charge q. The charge distributed on the outside of the third shell is
◦ −3q.
◦ −(ln 3)q.
◦ +q.
◦ +(ln 3)q.
◦ +3q.
Question 2
A series of 3 uncharged concentric spherical conducting shells surround a small central charge q. The potential at a point outside the third shell, at distance r from the center, and relative to V = 0 at ∞, is
◦ .
◦ .
◦ .
◦ .
◦ .