Q. If a sequence is causal then ROC is (where a is any number)

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Q. If f1(t)<< F1(jω) and f2(t)↔ F2(jω), then [a1 f1(t) + a2f2(t)]↔

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Q. The signal x(t) = A cos (ω₀t + φ) is

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Q. The inverse Fourier transform of δ(t) is

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Q. Which one of the following is the correct statement of the system characterized by the equation y(t) = ax(t) + b?

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Q. The derivative of unit step function is

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Q. The coefficients Fn in the exponential form of Fourier series are

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Q. If X(z) = (1 - az¯¹), and |a| < |z|, the initial value x₀ is

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Q. The function A e^(st) where s = s + jω represents

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Q. Half wave sysmmetry means f(t) = - f(t ± T/2).

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Q. If X(z) = 2az¯¹/(1 - az¯¹)³ and |a| < |z|, then the initial value x₀ is

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Q. The Nyquist sampling interval, for the signal sinc (700t) + sinc (500t) is

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Q. The integral of a unit impulse is

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Q. The z-transform of sequence x[n] = δ(n) is

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Q. State variable formulation is very suitable for computer solution.

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Q. When a complex voltage wave is applied to a capacitor the resulting current wave is more distorted than the voltage wave.

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Q. Fourier transform of non periodic DT signal is

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Q. The Fourier transform of f(t) = cos ω₀t is

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Q. The units of the spectrum obtained be Fourier transforming the covariance function of a stationery Stochastic Process is

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Q. FIR digital filter having __________ stability than FIR filter.

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