Q. The eign values of n x n matrix A are the root of the characteristic equation 1λI - AI = 0

View solution

Q. A signal is x + f(t) where x is constant and f(t) is a power signal with zero mean value. The power of the signal is

View solution

Q. A pulse function can be represented as difference of two equal step functions.

View solution

Q. A system with input x[n] and output y[n] is given as y[n] = (sin 5/6 πn) x(n) The system is

View solution

Q. unit step is a

View solution

Q. The n state variables can be considered as n components of a state vector.

View solution

Q. Following is a reason of distortion in communication system

View solution

Q. Short circuit is the dual of open circuit.

View solution

Q. Highest value of Autocorrelation of a function 100 cos 50 πt is

View solution

Q. Which one of the following is the correct statement?

The region of convergence of z transform of x[n] consists of the values of z for which x[n] r¯ⁿ is

View solution

Q. A linear discrete time system has the char. equation z³ - 0.81z = 0, the system is

View solution

Q. Energy density function is always

View solution

Q. Which of the following is/are not a property/properties power spectral density function Sx(ω)?

View solution

Q. A casual LTI system is described by the difference equation

2y[n] = αy[n - 2] - 2x[n] + βx[n -1]

The system is stable only if

View solution

Q. Fourier series is applicable for

View solution

Q. Fourier transform F(jω) of an arbitrary signal has the property

View solution

Q. The units of F(jω) are volt-seconds.

View solution

Q. An excitation is applied to a system at t = T and the response in zero for -∞ < t < T. This system is

View solution

Q. The signumm function written as [sgn(t)] is defined as

View solution

Q. For formation of state equations, resistance of the circuit

View solution