[ Problem View ]
Charge Distribution on a Conducting Shell - 2
A positive charge is kept (fixed) off-center inside a fixed spherical conducting shell that is electrically neutral. The large positive charge inside the shell is roughly 16 times that of the smaller charges shown on the inner and outer surfaces of the spherical shell.
Part A
Which of the following figures best represents the charge distribution on the inner and outer walls of the shell?
Hint A.1
Symmetry inside shell
The field inside the conductor must be zero. The charge inside the shell is off-center, and hence the charge on the inner surface of the shell will arrange itself asymmetrically to cancel the field of the large positive charge.
Hint A.2
Symmetry outside shell
The field inside the conductor must be zero. To the charges on the outer surface, it is as if the inside of the conductor were completely neutral. Thus, the charges on the outer surface will feel no force other than their own mutual repulsion, and will therefore have no preferred direction.
ANSWER:
12345
 [ Print ]