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Generate and plot a sampled sine wave with fs=8kHz, of 4 seconds duration, with frequency ω0 = Π/10 and amplitude A = 1.2. The waveform equation is
x(n) = A sin nω
Explain the role of each of the variables in this equation. What is the true (Hertz) fre- quency generated in this case?
Generate a Gaussian random signal vector, v(n), of the same length. Then generate a noisy signal of the form
y(n) = x(n) + αv(n)
(2) Listen to the resulting signal y(n) for various values of α. You will have to choose the value of α experimentally - try both small and large, and investigate the differences. Plot one of the waveforms, and comment briefly on your results.
Right hand Rule: James clark Maxwell proposed a rule to search the direction of magnetic lines of force around a wire carrying current. This rule states. "If a current carr
Q. A capacitor of capacitance 2 μF is in an ac circuit of frequency 1000 Hz. If the rms value of the applied emf is 10 V, find the effective current flowing through the circuit.
if 36C of charge pass through a wire in 4 seconds what current is it carrying
The magnitude of a charge, q, is to be determined by transferring the charge equally to two pith balls. Each of the pith balls has a mass of m, and is suspended by an insulating th
why do we need degenerate semiconductor to fabricate a laser diode?
Two vibrating particles that are "out of phase" differ in the phase of their vibration by: a) 1/4 cycle b) 1/2 cycle c) 3/4 cycle d) 1 cycle Ans: Two vibra
A load of P57 kN is being hoisted at a constant speed by the motor, M which has a weight of 0.5kN. The beam has a weight of P58 N/m. Assume that the hoisting has stopped at the pos
Explain the meaning of Lasers? Lasers use these discrete energy levels in atoms or molecules to build a large population of atoms at an excited energy level that are ready and
A monochromatic parallel beam of light is incident on a single slit. Graphically show the intensity distribution among the secondary maxima and principle maxima in diffracted beam.
Which word in the sentence is the participle? Around the year 1500, Leonardo da Vinci, a great inventor and painter, designed plans for a flying machine, but it was never built.
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