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The temperature reached in a lightning channel is approximately

  • A.30000 kelvin
  • B.3000 kelvin
  • C.300 kelvin
  • D.300000 kelvin

Answer: A

This exceeds the surface temperature of the sun by a factor of several. The heating occurs so rapidly that the surrounding air has no time to expand before the pressure rises. That pressure jump is precisely what becomes the thunder.

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