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Charge separation requires work to be done because

  • A.opposite charges attract and must be pulled apart
  • B.like charges attract and so resist being separated
  • C.charge cannot be separated without strong heating
  • D.the atmosphere behaves as a perfect conductor

Answer: A

The updraught supplies the mechanical energy, which is ultimately derived from latent heat release. A thunderstorm is therefore a heat engine driving an electrical generator. Convection supplies the mechanical work required.

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