Signals-and-systems Questions Set 48:
All causal systems must have the component of
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The Fourier transform of a signal h(t) is H (jω) = (2 cosω ) (sin2ω) / ω . The value of h(0) is
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Which of the following statements about Frequency Modulation (FM) are correct?
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The Laplace transform of a function f(t) is F(s)=5s2+23s+6s(s2+2s+2). As t →∞, the function approaches:
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When is a complex exponential signal a pure DC signal?
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Which of the following is an application of a non-causal system?
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In which of the following useful signals, is the bilateral Laplace Transform different from the unilateral Laplace Transform?
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What happens to the accumulator function as n tends to infinity?
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The equation describes a system with an output and input . The system is:
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The tuned circuit of the oscillator in a simple AM transmitter employs a 40 μH coil and a 12 pF capacitor. If the oscillator output is modulated by an audio frequency of 5 kHz, what is the bandwidth required to transmit this amplitude modulated wave?
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