Q. For the signum function sgn(t), F(jω) =

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. The derivative of unit step function is

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. The integral of a unit impulse is

View solution

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

View solution

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

View solution

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

View solution

Q. Fourier transform of non periodic DT signal is

View solution

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

View solution

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

View solution