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Rocket triggered lightning is used to

  • A.prevent lightning from striking a protected facility
  • B.measure the fair weather field at the surface
  • C.generate electrical power directly from storms
  • D.study flash physics under controlled conditions

Answer: D

A small rocket trailing a grounded wire initiates a discharge at a known place and time. The technique has provided much of what is known about return stroke currents. Instrumented towers provide the other main source.

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