Physics Help Forum Potential (check my error)

 May 17th 2009, 12:22 PM #1 Senior Member   Join Date: Jul 2008 Posts: 179 Potential (check my error) A charge $\displaystyle +10^{-8}C$ uniformly distributed on a spheric shell with 12 cm radius. (a) What is the intensity of the electric field in the positions immediately to the external and internal shell? (b) What is the intensity of the electric potential in the positions immediately to the external and internal shell ? (c) What is the potential at the center of spheric, which the field at that point? My solution a) internal E = 0 external $\displaystyle E = \frac{kq}{r^2} = 6250 N/C$ b) internal = external = $\displaystyle E = \frac{kq}{r} = 750 V$ c) Potential is the same across the region d) E = 0 (r = 0) The asnwer a) internal E=0 external E = 6,25x10^{-15} N/C b) V = 0,75x10^{-15}V c) and d) Not have answer. My solution is correct ?
 May 17th 2009, 12:30 PM #2 Physics Team   Join Date: Feb 2009 Location: India Posts: 365 According to the information provided in the question, your answers are correct.
May 17th 2009, 12:34 PM   #3
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Join Date: Jul 2008
Posts: 179
 Originally Posted by Parvez According to the information provided in the question, your answers are correct.
Ok. Thank you

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