78651. The unit step response of a system is (1 - ea t) u(t). Then its impulse response is
78652. The output of a linear system for any input can be computed in which of the following ways?
78653. The inverse Laplace transform of 1/(s - a)2 is
78654. If xk = 0 for k < 0 and = 2k for k ≥ 0 X(z) = z/(z -2).
78655. Assertion (A): If an event A can happen in m ways and another event B can happen in n ways, both can happen in mn ways.Reason (R): Two events are mutually exclusive if happening of either precludes the occurrence of other.
78656. Assertion (A): In the curve , a high value of h indicate a high peak and rapid fall in the curve.Reason (R): If the number of ways in an event may result can be analysed into a successes and b failures, each equally likely to occur, the probability of success in a single trial is
78657. Which one of the following digital filters does have a linear phase response?
78658. For a second order system, damping ratio ζ is such that 0 < ζ <. Then the roots of characteristic equation are
78659. If is scaled as an x[n] then ROC changes from `R` to
78660. If f(t)↔ F(jω), and f(t) is real, then F(- jω)
78661. Fourier transform o the function f(t) = 1 is
78662. If a function f(t) is an odd, function, its Fourier series
78663. cos(nω1t) =
78664. Assertion (A): The wave shown in the given figure does not contain the dc component and even harmonicsReason (R): If f(- t) = f(t) the wave has only cosine terms.
78665. The function δ'(t - b) is a unit doublet.
78666. If £ f(t) = F(jω), then
78667. The value of P(2 < x < 3) in function f(x) = K(x - 1) for K = 1 < x < 4 is
78668. Assertion (A): For the determinant the minor fora11 is Reason (R): The minor of any element of a determinant ajk is the determinant which remains when the row and column corresponding to ajk are deleted.
78669. The inverse response of a system h(n) = an∪(n) what is the condition for the system to be BIBO stable?
78670. A system has poles at 0.01 Hz, 1 Hz and 80 Hz, zeros at 5 Hz, 100 Hz and 200 Hz. The approximate phase of the system response at 20 Hz is
78671. Fourier transform of sgn (t) is
78672. If the number of ways an event may result ins analysed into m successes and n failures, each equally likely to occur, the probability of success in a single trial is m( m + n)
78673. Which one is correct option about ROC?
78674. Assertion (A): The scalling theroem in Laplace transform relates the scale changes in s domain to the consequent changes in t domain.Reason (R): If
78675. The integral of a unit impulse is unit step function.
78676. If X(z) = (1 - a z-1)-1 and |a | < |z|, the initial value x0 = 0
78677. Assertion (A): The exponential form of Fourierseries is Reason (R): If f(t) is an even function, the coefficients Fn are real.
78678. If X(z) = (1 - a)z-1/[(1 - z-1)(1 - az-1)] and 1 < |z|, the final value of xk is
78679. In the given figure f(t) is an even function.
78680. Final value theorem is used to find
78681. Which one of following is correct condition to check the stability of sysytem in terms of impulse response?
78682. which of the following is not true for impulse function δ(t)?
78683. In the given figure the phase angle of Fn is either 0 or Π.
78684. The signal m(t) = 10 cos 100 p t is sampled at the rate of Fs = 75 Hz, then determine signal after sampling.
78685. The tree selected for the formation of state equations contains
78686. If F(jω) is the Fourier transform of f(t), then
78687. Assertion (A): Heaviside partial expansion gives a simple procedure to find inverse Laplace transform of the terms having a complex conjugate pair of roots.Reason (R): If I(s) = P(s)/Q(s) and all roots of Q(s) = 0 are simple, i(t) will have terms with exponentials having real exponents only.
78688. An impulse train is
78689. For formation of state equations, the inductors and current sources
78690. If f(t) = 1, F(jω) =
78691. The power in the signal s(t) = 8 cos (20 p - p /2) + 4 sin (15 p t) is
78692. If f(t) ↔ F(jω), f(- t) ↔
78693. Assertion (A): Transient analysis uses Laplace transformation.Reason (R): Laplace transform method is suitable for solution of integro differential equations.
78694. The minor Mij of an n x n matrix is the determinant of (n - 1) x (n - 1) matrix formed by deleting the ith row and j the column of n x n matrix.
78695. The peak factor is
78696. Assertion (A): A half cycle of sine wave can be expressed as sum of sine wave and another sine wave shifted by T/2 where T is the time period.Reason (R): The function u(t - t0) - u(t - t0 - T) is a gate function occuring at t = t0 and of duration T.
78697. If xk = a k and k ≥ 0X(z) = (1 - a z-1)-1 with |a | < |z|
Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use
Powered By:Omega Web Solutions