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Parallel plate capacitors

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A capacitor is constructed with two parallel rectangular plates, each with sides, 5 m and 2 m. The capacitance, C=1.5 nF.
What is the separation, d, between the plates of the capacitor?
Note: Write d in units of cm.
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi