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MMLU / Which of these quantities decreases as the inverse square of distance for…

Problem

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question

Which of these quantities decreases as the inverse square of distance for distances far from the objects producing the fields?

choices

  1. the electric field produced by a finite-length charged rod
  2. the electric field produced by an infinitely long charged cylinder
  3. the electric field produced by an infinite plane of charge
  4. the magnetic field produced by an infinitely long, straight current-carrying wire

subject

high_school_physics

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Source and history

Official source

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