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Discussion

When a current source I is suddenly connected across a two terminal relaxed RC circuit at time t = 0, the voltage across the current source is shown in figure. The RC circuit is

  • A.a series combination of R and C
  • B.a parallel combination of R and C
  • C.a series combination of R and parallel combination of R and C
  • D.a pure capacitor

Answer: C

Initially capacitor behaves as short-circuit and finally as open circuit.

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