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Problem :
(10 pts) Consider the analog signal x(t) = 3 cos 100PIt
a) Determine the minimum sampling rate required to avoid aliasing.
b) Suppose that the signal is sampled at the rate of fs= 200 Hz, what is the discrete time signal obtained after sampling?
develop a procedure for computing values of X(z) at 25 points spaced uniformly on an arc of a circle of radius 0.5, beginning at an angle of -π/6 and ending at an angle of 2π/3. The length of the sequence is 100 samples.
A 6600V/230V, 50Hz single phase core type transformer has a core section 25cmX25cm. Calculate the approximate number of primary and secondary turns if the flux density in the core should not exceed 1.1Wb/m2.
When the body metabolizes glucose water and carbon dioxide are produced according to the following equation. C6H12O6 + 6 O2 --> 6 CO2 + 6 H2O If 0 g of glucose are metabolized with excess oxygen
Steam enters an adiabatic nozzle at 3.5Mpa and 300C with a low velocity and leaves at 1.6Mpa and 250C at a rate of 0.4kg/s. If the surrounding is 10 at 100Kpa and 18C, find A) The exit velocity B)The 2Nd law efficiency
find the spectrum of the signal s(t) that results from the use of natural sampling,assuming that time t=0 corresponds to the midpoint of a rectangular pulse in c(t). show that the original signal m(t) may be recovered exactly from its naturally sa..
The charge entering the positve terminal of an element is given by the expression q(t)=-12e^(-2t) mC. The power delivered to the element is p(t)=2.4e^(-3t) W. Compute the current in the element, the voltage across the element,
build a 6-string cigar-box electric guitar to demonstrate the following 1. a circuit that can tune the guitar 2. a
The circuit connected in series
Inherent problems associated with high voltage direct current transsmision
Design a Phase lag controller that will have a phse margin of about 60 degrees (you will need to be within 5 degrees for your design) A. Where are the poles and zeros B. What is the approximate value of the gain crossover frequency of the plant with..
Discuss the properties and practical applications of the following electrical engineering materials : (a)Carbon and graphite (b) copper
Derive the solution (fields and cutoff frequency) for the lowest order TE mode of this structure. Assume the metal plates are infinitely wide. Can a TEM wave propagate on this structure
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