2. A Charged, Thin Sheet of Insulating Material + + + + + + + + + + +

3. 1) There is a conducting spherical shell, inner radius A and outer radius B. If you put a charge Q on it, find the charge density everywhere. 2) There is a conducting spherical shell, inner radius A and outer radius B. A charge Q is put at the center. If you put a charge Q 2 on the shell, find the charge density everywhere.

4. Electric field near a surface of a conductor a

5. d + + + + + + a - - - (the total field at any point between the plates) Two parallel conducting plates

6. An Apparent Contradiction + + + + + + - - -

7. + + + + + + - - - Near the surface of any conductor in electrostatics