A small charged sphere of radius a=1.00 cm is suspended by a nylon thread inside a larger neutral, conducting sphere. The larger sphere has an interior radius b=3.10 cm and is Δ=0.5 cm thick. The charge on the small sphere is q=0.90 nC. The two spheres are concentric and insulated from their surroundings. For the following questions, the origin of our coordinates is the center of the spheres.
1) What is the magnitude of the electric field at a radius 10.0 cm? Hint: Use Gauss's law, and remember that the outer sphere is neutral
2) What is the magnitude of the electric potential at the surface of the smaller sphere?
3) What is the magnitude of the electric potential at the outside surface of the larger sphere?
i can't figure these three out for some reason, pelse help
2007-09-17 06:28:34 · 2 answers · asked by chs_soccer_02 2 in Science & Mathematics ➔ Physics
E= k Q / r^ 2 must hold at all r outside the outer sphere. and the electrons in the conducting outer sphere will arrange them selves to cancel the effect of the external field inside the shell that is across its thickness delta E will be 0
2007-09-17 07:33:17 · answer #1 · answered by meg 7 · 0⤊ 0⤋
the galaxies rotate at speeds inconsistent with their obvious mass is considering that we do see it all. I am relating to it as being the theoretical Dark Matter. There are very powerful proofs that shows that darkish topic exist. One the is the inconsistent velocity of and obvious mass. darkish topic makes up approximately seventy five% to eighty% of the problem within the Universe...
2016-09-05 17:02:15 · answer #2 · answered by ? 4 · 0⤊ 0⤋