78454. A rectangular pulse is passed through an L.P.F. The response is a
78455. Consider z transform of a signal as given belowthen the response will be
78456. The eigen values of matrix are
78457. Assertion (A): If , the final value of i(t) is 2AReason (R): As per final value theroem
78458. A signal f(t) = cos 10p t + 3 cos 4p t is instantaneously sampled. The maximum allowable value of sampling interval Ts in sec is
78459. Assertion (A): The rms value of v = 1 + sin ωt is 1.5 Reason (R): If i = I0 + I1m sin ω1t + I3m sin 3ω1t, then
78460. The exponential form of Fourier series is
78461. Principle of superposition is applicable to
78462. The range of value "a" for which system will be stable. If impulse response of DT system is = an ∪[n]
78463. Laplace transform of unit doublet is
78464. The temperature in degree centigrade for human comfort is:
78465. Highest value of autocorrelation function 100 sin 50 p t is
78466. A unit impulse voltage is applied to an inductance at t = 0. The current at t = 0 will be
78467. A voltage wave containing 10% third harmonic is applied to a scries R-L circuit. The percentage third harmonic content in the current wave will be
78468. check the following system for causality y[n] = x[n] + 2x[n - 1]y[n] = x[n - k]y[n] = x[2n]
78469. If the system transfer function of a discrete time system then system is
78470. Two rectangular waveforms of duration t1 and t2 seconds are convolved. What is the shape of the resulting waveform?
78471. The function Ae(s + jω)t represens a rotating phasor having a magnitude increasing with time.
78472. If f1(t)<< F1(jω) and f2(t)↔ F2(jω), then [a1 f1(t) + a2f2(t)]↔
78473. The signal x(t) = A cos (ω0t + φ) is
78474. The inverse Fourier transform of δ(t) is
78475. Which one of the following is the correct statement of the system characterized by the equation y(t) = ax(t) + b?
78476. Paley Wiener criterion for designing of filter is
78477. If δ(t) denotes a unit impulse, Laplace transform of is
78478. The function (sin x)/x
78479. Which of the following represents a stable system? Impulse response decreases exponentially.Area within the impulse response in finite.Eigen values of the system are positive and real.Roots of the characteristic equation of the system are real and positive. Select the answer using the following codes:
78480. Auto correlation for t = 0 is equal to
78481. For an ac sinusoidal wave, the rms value is 10 A. For the same wave delayed by 60° in each half cycle, the rms value is likely to be
78482. It f(t) is an odd function, the coefficients Fn in the exponential form of Fourier series
78483. The response of a linea, time invariant discrete time system to a unit step input ∪(n) is the unit impulse δ(n). The system response to a ramp input n ∪(n) would be
78484. The impulse response h[n] of a linear time invariant system is given asIf the input to the above system is the sequence ejp n/4, then the output is
78485. For the signum function sgn(t), F(jω) =
78486. In the periodic train of rectangular pulses F0 = (V0/T)d
78487. Z transform of [(Xk±k0)] =
78488. If a sequence is causal then ROC is (where a is any number)
78489. X and Y are two random variable and Z = X + Y. Let σx2, σy2 and σz2 be variance of X, Y and Z. Then
78490. Consider the following sets of values of E, R and C for the circuit in the given figure. 2 V, 1 Ω, 1.25 F1.6 V, 0.8 Ω, 1 F1.6 V, 1 Ω, 0.8 F2 V, 1.25 Ω, 1 F Which of these of values will ensure that the state equation is valid?
78491. Assertion (A): The conditions under which it is possible to write Fourier series of a periodic function are called Drichlet conditions. Reason (R): If f(t) = - f(- t), it is refereed to as odd symmetry.
78492. Initial value theroem for sequence x[n] is
78493. L[c1f1(t) + c2f2(t)] =
78494. If a linear time invartant system is exicited by a pure random signal like white noise, the output of the linear system will have which of the following properties?
78495. A signum function is
78496. Give that is
78497. If f(k) ↔ F(z), then kn fk ↔
78498. If a number of even functions are added, the resultant sum is
78499. For the differential equation (D3 - D2 + D -1) [y(t)] = 0 the root of auxiliary equation are
78500. If F[jω] is Fourier transform of f(t), then Fourier transform of f(- t) =
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