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

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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

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

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Q. Which of following is recursive system?

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

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

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

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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

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

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Q. Choose correct option

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

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

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Q. If a number of even functions are added, the resultant sum is

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Q. For the differential equation (D³ - D² + D -1) [y(t)] = 0, the root of auxiliary equation are

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Q. The auto correlation of a sampling function is a

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Q. A gate function which occurs at t = t₀ and lasts for duration T can be written as

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Q. Assertion (A): The response of a network to an impluse is determined only by the parameters of the network.

Reason (R): If f(t) is a unit parabolic function, its Laplace transform is 1/s³

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Q. Assertion (A): δ(t - b) is an impulse occuring at t = b

Reason (R): Intergal of unit impulse gives unit step function.

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Q. If a signal g(t) has energy E, then the energy of the signal g(2t) is equal to ...

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Q. 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

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