ECE :: Exam Questions Paper
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Determine the potential difference between the points A and B in the steady state
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Find the value of K and velocity constant Kv so that the maximum overshoot in the unit step response is 0.2 and the peak time is 1 sec.
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The transfer function of a discrete time LTI system is given by
Consider the following statements:
S1: The system is stable and causal for ROC: |z| > 1/2
S2: The system is stable but not causal for ROC: |z| < 1/4
S3: The system is neither stable nor causal for ROC: 1/4 < |z| < 1/2
Which one of the following statements is valid? -
In the following network, the switch is closed at t = 0- and the sampling starts from t = 0. The sampling frequency is 10Hz.
The expression and the region of convergence of the z-transform of the sampled signal are -
The logic function implemented by the following circuit at the terminal OUT is
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Consider a control system shown in given figure. For slight variation in G, the ratio of open loop sensitivity to closed loop sensitivity will be given by
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Consider the signal S(t) shown below :
The slope of the matched filter output during the interval -
The logic function f(A B, C) = Σm(0, 2, 4, 5, 6) represented by
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An electrical system and its signal-flow graph representation are shown in figure (a) and (b) respectively
The values of G2 and H, respectively are -
Consider the circuit shown below of 2 : 1 MUX is given by the function g = ac + bc
Then f is
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|z| < e-5 
|z| < e-0.05 
|z| < e-0.05 
|z| > e-5 
5.e-0.05n.Z-n
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...(iii)
From SFG ...(iv)
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