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Capacitors connected in parallel have a combined capacitance equal to

  • A.the reciprocal of the sum of the reciprocals
  • B.the product of the values divided by their sum
  • C.the largest of the individual values
  • D.the sum of the individual values

Answer: D

Each carries the same voltage and contributes its own charge, so the charges add and the ratio of total charge to voltage is the sum of the capacitances. Physically it amounts to increasing the plate area, which the formula for a parallel plate capacitor confirms.

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