- #1
GreenDinos
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A conducting sphere that carries a total charge of 6 micro C is placed at the center of a conducting spherical shell that also carries a total charge of 6 micro C .
(a) Determine the charge on the inner surface of the shell.
(b) Determine the total charge on the outer surface of the shell.
this seems like it shouldn't be too hard, but i guess i just don't understand the concepts well enough to figure it out...
I was thinking about where I would put field lines in this to understand what's going on- but all i can come up with is that inside a spherical shell there's no electric field...but there's a conducting sphere in there which throws that off. I'm not sure that would help anyway. I guess I'm just thinking- that since they both have + charges, the inside part of the shell would be...i dunno, -6 micro Coulombs...since the electrons would move to the charge??...and that maybe, since the charges are both radiating out- the outer surface would be 12 micro C? I am probably very wrong but this is why i am looking for help. anything would be much appreciated.
thanks
(a) Determine the charge on the inner surface of the shell.
(b) Determine the total charge on the outer surface of the shell.
this seems like it shouldn't be too hard, but i guess i just don't understand the concepts well enough to figure it out...
I was thinking about where I would put field lines in this to understand what's going on- but all i can come up with is that inside a spherical shell there's no electric field...but there's a conducting sphere in there which throws that off. I'm not sure that would help anyway. I guess I'm just thinking- that since they both have + charges, the inside part of the shell would be...i dunno, -6 micro Coulombs...since the electrons would move to the charge??...and that maybe, since the charges are both radiating out- the outer surface would be 12 micro C? I am probably very wrong but this is why i am looking for help. anything would be much appreciated.
thanks