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GATE EC : Signals & Systems Champion Quiz 4

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Question 1

Discrete-time signal is obtained by sampling from:





Question 2

A current impulse, 5δ (t), is forced through a capacitor C. The voltage, Vc(t), across the capacitor is given by

Question 3

Fourier Series for the waveform, f(t) shown in the following figure is
Description: D:\GradeStack Courses\GATE Tests (Sent by Ravi)\GATE-EE-ME-19-Mar\GATE-EE-2002_files\image004.jpg

Question 4

What is the rms value of the voltage waveform shown in the following figure?
Description: D:\GradeStack Courses\GATE Tests (Sent by Ravi)\GATE-EE-ME-19-Mar\GATE-EE-2002_files\image058.jpg

Question 5

Which type of signal is shown in the figure 

Question 6

x[n] 0; n < -1, n > 0, x [-1] = -1, x[0] = 2 is the input and y[n] = 0; n < -1, n > 2, y[-1] = -1= y[1], y [0] = 3, y[2] = -2 is the output of a discrete-time LTI system. The system impulse response h[n] will be

Question 7

A system with input x(t) and output y(t) is defined by the input-out relation:

The system will be

Question 8

The rms value of the resultant current in a wire carries a dc current of 10 A and a sinusoidal alternating current of peak of value 20 A is

Question 9

For the given impulse responses, determine whether the corresponding system is (i) memoryless, (ii) causal, and (iii) stable.

System impulse response h(t) = 3δ(t).

Question 10

The discrete-time signal

Where denotes a transform pair relationship, is orthogonal to the signal

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Jun 20ESE & GATE EC