Multiple choice

The circuit shown in the figure has initial current iL (0-) = 1 A through the inductor and an initial voltage vC(0-) = -1 V across the capacitor. For input = v(t) = u (t), the Laplace transform of the current i(t) for t $\ge$0 is

  1. $\dfrac{s}{s^2+s+1}$
  2. $\dfrac{s+2}{s^2+s+1}$
  3. $\dfrac{s-2}{s^2+s+1}$
  4. $\dfrac{1}{s^2+s+1}$
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B Correct answer
Explanation

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