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A 20 pF capacitor and a 30 pF capacitor in parallel are charged to 200 V. The total charge stored is

  • A.10 \( \mu \)C
  • B.10 nC
  • C.4 nC
  • D.2.4 nC

Answer: B

The combined capacitance is fifty picofarads and multiplying by two hundred volts gives \( 10^{-8} \) coulombs. Each capacitor carries its own share in proportion to its capacitance, four and six nanocoulombs respectively.

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