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Discussion :: Network Analysis and Synthesis

  1. An RC circuit initially at rest has a step signal. The response V(t) across C is V(t) = 1 - e-at, If now there is an initial voltage on C of 2 volts for the same step signal, V(t) is now

    2. A.
    1 + e -at
    B.
    1 + 2e -at
    C.
    2 - e -at
    D.
    3 - e -at

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    Answer : Option A

    Explanation :

    At t = 0+, V0 = 4 volt.

    at t = ∞ C open Vf = 4 x 2 = 8 volt.

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