{\left( { – {1 \over 3}} \right)^n}u\left( { – n – 1} \right).$$ The Region of Convergence (ROC) of the z-transform of x[n]" class="read-more button" href="https://exam.pscnotes.com/mcq/let-xleft-n-right-left-1-over-9-rightnuleft-n-right-left-1-over-3-rightnuleft-n-1-right-the-region-of-convergence-roc-of-the-z-t/#more-59831">Detailed
SolutionLet $$x\left[ n \right] = {\left( { – {1 \over 9}} \right)^n}u\left( n \right) – {\left( { – {1 \over 3}} \right)^n}u\left( { – n – 1} \right).$$ The Region of Convergence (ROC) of the z-transform of x[n]
$$vleft( t
ight) = intlimits_0^t {ileft( au
ight)} zleft( {t - au }
ight)d au $$
$$vleft( t
ight) = intlimits_0^t {ileft( au
ight)} zleft( {t + au }
ight)d au $$
v(t) = z(t) + i(t)
Answer is Wrong!
Answer is Right!
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v(t) is" class="read-more button" href="https://exam.pscnotes.com/mcq/the-voltage-across-an-impedance-in-a-network-is-vs-zs-is-where-vs-zs-and-is-are-the-laplace-transform-of-the-corresponding-time-functions-vt-zt-and-it-the-voltage-vt-is/#more-59366">Detailed SolutionThe voltage across an impedance in a network is V(s) = Z(s). I(s), where V(s), Z(s) and I(s) are the Laplace transform of the corresponding time functions v(t), z(t) and i(t). The voltage v(t) is
system is" class="read-more button" href="https://exam.pscnotes.com/mcq/the-transfer-function-of-a-zero-order-hold-system-is/#more-59280">Detailed SolutionThe transfer function of a zero-order-hold system is
in cascade. Then the overall impulse response of the cascaded system is given by" class="read-more button" href="https://exam.pscnotes.com/mcq/two-systems-with-impulse-responses-h1t-and-h2t-are-connected-in-cascade-then-the-overall-impulse-response-of-the-cascaded-system-is-given-by/#more-59210">Detailed SolutionTwo systems with impulse responses h1(t) and h2(t) are connected in cascade. Then the overall impulse response of the cascaded system is given by
x(t) are shown in the figure. Choose the correct statement from the four choices given. Notation: C is the set of complex number, R is the set of purely real numbers, and P is the set of purely imaginary numbers.
which one of the following statements is TRUE?" class="read-more button" href="https://exam.pscnotes.com/mcq/for-an-n-point-fft-algorithm-with-n-2m-which-one-of-the-following-statements-is-true/#more-58950">Detailed SolutionFor an N-point FFT algorithm with N = 2m, which one of the following statements is TRUE?
SolutionA discrete time linear shift-invariant system has an impulse response h[n] with h[0] = 1, h[1] = -1, h[2] = 2, and zero otherwise. The system is
given an input sequence x[n] with x[0] = x[2] = 1 and zero otherwise. The number of nonzero samples in the output sequence y[n], and the value of y[2] are, respectively
can have only" class="read-more button" href="https://exam.pscnotes.com/mcq/the-trigonometric-fourier-series-of-a-periodic-time-function-can-have-only/#more-58155">Detailed SolutionThe trigonometric Fourier series of a periodic time function can have only