Q. For exponential function e^(-at) the Laplace transform 1/(s - a)

View solution

Q. Consider the sequence x[n] = [- 4 - j5 1 + J2 4]

View solution

Q. A voltage v = 5 + 50 sin ωt + 5 sin 5 ωt is applied to a pure capacitor of capacitance 1 ωF. If f/= 314 rad/sec, current is

View solution

Q. The stationary process has

View solution

Q. If x1(t) = 2 sin πt + cos 4 πt and x2(t) = sin 5 πt + 3 sin 13 πt , then

View solution

Q. An ac network has a power factor of 0.8 leading if the applied wave is of fundamental frequency. If the applied wave contains third and fifth harmonics, the overall power factor will be

View solution

Q. Assertion (A): A sweep circuit operates by virtue of recurring transient phenomenon.

Reason (R): Transients are always undesirable.

View solution

Q. Which one is a non-causal system?

View solution

Q. A linear system is characterized by H(ω) = Be^(-2ω²) the system is physically

View solution

Q. The current in a circuit with 10 Ω resistance is i = 3 + 4 sin (100 t + 45°) + 4 sin (300 t + 60°) A. The rms current and power dissipated are

View solution

Q. Fourier transform pair are

View solution

Q. A voltage wave is i = 100 sin (ωt). Its average value calculated over one half cycle is

View solution

Q. An RLC series circuit has a variable inductance. The value of L for resonance conditions at fundamental frequency is 0.18 H. For resonance conditions at third harmonic frequency the value of inductance is

View solution

Q. which of the following is not correct?

View solution

Q. If function f(t) has an initial value f(0¯) at t = 0¯, the Laplace transform of d[f(t)]/dt is

View solution

Q. If f(t) = - f(- t) satisfies Drichlet conditions, then f(t) can be expanded in Fourier series containing

View solution

Q. Transfer function of a linear system is 200 e^(-j10ω) The system is a

View solution

Q. which one is discrete time periodic signal?

View solution

Q. Frequency domain of a periodic triangular function is a

View solution

Q. A signal is sampled at Nyquist rate fs = 2f0. The function can be recovered from its samples only. If it is a

View solution