GATE2014-10

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A unit $IMPLUSE$ response of a first order system with time constant $\tau$ and steady state gain $K_{p}$ is given by

1.  $\frac{1}{K_{p}\tau }e^{t/\tau }$
2. $K_{p}e^{-t/\tau}$
3. $\tau K_{p}e^{-t/\tau }$
4. $\frac{K_{p}}{\tau }e^{-t/\tau }$

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