ECE :: Signals and Systems
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A signal is sampled at Nyquist rate fs = 2f0. The function can be recovered from its samples only. If it is a
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A voltage wave is v = 50 sin ωt. Its average value calculated over full one cycle is
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If f1 (t) and f2 (f) are two functions of time and a and b are constants, then
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A voltage wave is i = 100 sin (ωt). Its average value calculated over one half cycle is
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In the given figure 15.5 show a discrete time system consisting of a unit delay system, a multiplier and a summer, such that y(k) = x(k - 1) + 0.5 x(k). This system
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An RLC series circuit has a variable inductance. The value of L for resonance conditions at fundamental frequency is 0.18 H. For resonance conditions at third harmonic frequency the value of inductance is
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which of the following is not correct?
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If function f(t) has an initial value f(0-) at t = 0-, the Laplace transform of
is
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