Q. Laplace transform of unit doublet is

View solution

Q. The integral of a unit step function is

View solution

Q. Highest value of autocorrelation function 100 sin 50 πt is

View solution

Q. A unit impulse voltage is applied to an inductance at t = 0. The current at t = 0 will be

View solution

Q. 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

View solution

Q. A rectangular pulse is passed through an L.P.F. The response is a

View solution

Q. A signal f(t) = cos 10πt + 3 cos 4πt is instantaneously sampled. The maximum allowable value of sampling interval Ts in sec is

View solution

Q. If f(t) is in volts, then F(jω) is in

View solution

Q. A voltage V(t) which is a Gaussian ergodic random process with a mean of zero and a variance of 4 volt² is measured by a true rms meter. The reading will be

View solution

Q. Assertion (A): If I(s) = 2s+10 / s(s+2) , the final value of i(t) = 10

Reason (R): If I(s) = 2s+10 / s(s+2) , the initial value i(t) = 2

View solution

Q. An ac circuit has an impedance of (3 + j6) ohm for fundamental. The impedance for fifth harmonic is

View solution

Q. Which of following is recursive system?

View solution

Q. If i = 10 + 12 cos 500t - 3.5 sin 500 t, then in amplitude phasse form i =

View solution

Q. The real part of complex frequency s corresponds to oscillations.

View solution

Q. A unit step function is used to represent the closing a switch in a constant voltage system.

View solution

Q. A voltage v = 100 sin ωt + 10 sin 5 ωt is applied to a pure capacitor having capacitance of 1 μF. If ω = 314 rad/sec, the current through the capacitor is

View solution

Q. In terms of signum function sgn(t), unit step function u(t) =

View solution

Q. Choose correct option

View solution

Q. If I(s) = 5(s+250) / s(s+100), fnal value of i(t) is

View solution

Q. If sequence y(n) = x(-n) then it is

View solution