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An isolated conduction sphere sphere who...

An isolated conduction sphere sphere whose radius `R=1` m has a charge `q=1/9nC.` The energy density at the surfasce of the sphere is

A

`(e_(0))/(2)J//m^(3)`

B

`e_(0)J//m^(3)`

C

`2e_(0)J//m^(3)`

D

`(e_(0))/(3)J//m^(3)`

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