Exam Questions Paper - ECE Questions and Answers

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The impulse response of an initially relaxed linear system is e^-2tu(t) . To produce a response te^-2tU(t), the input must be equal to __________ .

e^-2t U(t)

e^-lt U(t)

e^-1u(t)

Answer : Option A

Explanation :

Given, h(t) = e^-2tu(t) H(s) =

y(t) = te^-2t, u(t) y(s) =

Using Laplace Transform

∴ x(t) = e^-2tu(t)

Input must be equal to e^-2tu(t).

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