Homework/homework_06_Electric_Potential/homework_06_spheres_v.md

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 [[spheres_v.png]]
 
 A solid metal sphere of radius \[a = 2.5 cm\] has a net charge 
-\[Q_{in} = - 3.0 n C. The sphere is surrounded by a concentric conducting 
+\[Q_{in} = - 3.0 n C\]. The sphere is surrounded by a concentric conducting 
 spherical shell of inner radius \[b = 6.0 cm\] and outer radius \[c = 9.0 cm\].
 The shell has a net charge \[Q_{out} = \[+ 2.0 nC\]. What is \[V_0\], the electric 
 potential at the center of the metal sphere, given the potential at infinity is zero?