The diagram above illustrates an isolated metal sphere carrying charge W in a medium whose permittivity is so. The magnitude of the electric field intensity at P can be expressed as

  • A Q2/(4πεor2)
  • B Q/(4πεor2)
  • C Q/(4πεor)
  • D Q2/(4πεor2)
  • E Q/(4πεor) 2

The correct answer is B. Q/(4πεor2)

No explanation given
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