18. Two concentric conducting spherical shells each have a net charge of -1 C and all charges remain at rest. The outer shell has +1 C on its outer surface. How much charge is suspended within the central cavity (not touching the inner shell)? a) +3 C b) +2 C c) +1 C d) OC e) -1 C

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18. Two concentric conducting spherical shells each have a net charge of -1 C and all charges remain at rest.
The outer shell has +1 C on its outer surface. How much charge is suspended within the central cavity (not
touching the inner shell)?
a) +3 C
b) +2 C
c) +1 C
d) OC
e) -1 C
Transcribed Image Text:18. Two concentric conducting spherical shells each have a net charge of -1 C and all charges remain at rest. The outer shell has +1 C on its outer surface. How much charge is suspended within the central cavity (not touching the inner shell)? a) +3 C b) +2 C c) +1 C d) OC e) -1 C
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