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MMLU / A metal surface with 1 meter radius and surface charge density of 20 coulombs /…

Problem

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question

A metal surface with 1 meter radius and surface charge density of 20 coulombs / m2 is enclosed in a 10 m side cube. The total outward electric displacement normal to the surface of the cube is

choices

  1. 40π coulombs.
  2. 80π coulombs.
  3. 10π coulombs.
  4. none of these.

subject

electrical_engineering

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Source and history

Official source

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