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daniel69
Apr14-08, 06:07 AM
Suppose you give a metal sphere a negative charge. The electrons on the sphere will be...

A. located right in the middle of the shere
B. distributed in small bunches over the outside of the shere
C. evenly distributed over the outside of the shere
D. none of these

Hootenanny
Apr14-08, 06:09 AM
Where do you think they will be?

daniel69
Apr14-08, 06:11 AM
C. evenly distributed

Hootenanny
Apr14-08, 06:12 AM
C. evenly distributed
Why?

daniel69
Apr14-08, 06:14 AM
because the particle is now negatively charged so as a whole it should be charged negatively which i think would be done by an evenly distribution of electrons

Hootenanny
Apr14-08, 06:22 AM
because the particle is now negatively charged so as a whole it should be charged negatively which i think would be done by an evenly distribution of electrons
More specifically, the electric field inside a charged conductor must be zero and therefore all the net charge must lie on the surface.

Your answer is correct, I just wanted to make sure that you understood why.

daniel69
Apr14-08, 06:24 AM
thanks you