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Question 1 Use MATLAB to find, and to graph. the unit-sequence response of the system displayed below.
Question 2 A periodic signal x(t) with a fundamental period of 2 seconds is described over one fundamental period by
Graph the signal. Then, graph on the same scale the signal xN(t) given by
For N = 10, 20 and 30 (In each case the time scale of the graph should cover at least two fundamental periods of the original signal).
Question 3 A signal is defined by x[n] = sinc(n/8). Graph the magnitude and phase of the DTFT of x[n - 2].
What is the largest thickness d of a planar symmetric dielectric waveguide with refractive indexes n_1=1.50 n_2=1.46 for which there is only on TE mode at lambda_0=1.3 micrometers. What is the number of modes if a waveguide with this thickness is ..
i. The sender sends frames with increasing sequence numbers to the receiver. Only frames received in correct order are accepted by the receiver. ii. The receiver sends a NAK back to the sender when it receives an out-of-sequence frame.
A Dc machine is connected across a 240-volt line. It rotates at 1200 rpm and is generating 230 volts. the armature current is 40amps. A) Is the machine functioning as a generator or motor
a series parallel circuit with a 3V dc power source connected to 3 resistors. R1 and R2 are in series with the voltage source and R3 is in parallel with R2. It is given that 4amps is flowing through R1 and 2amps is flowing through R2.
A line charge of infinite lenght lies along the z axis and carries a uniform linear charge density of ρl C/m. A perfectly conducting cylindrical shell, whose axis is the z axis, surrounds the line charge.
A flashlight battery with a voltage of 1.2 would be considered. During servicing, Ni-Cad batteries are normally overcharged to of the rated amp-hour capacity. What is done in an airplane in flight to mitigate this complication
Metal sphere 1 has a positive charge of 8.0 nC. Metal sphere 2, which is three times the diameter of sphere 1, is initially uncharged. The spheres are then connected together by a long, thin metal wire. What are the final charges on each sphere
A 15 hp, 209V,three-phase,six pole, Y-connected induction motor has the following parameter values per phase: R1= 0.128 ohm, R'2=0.0935 ohm Xeq- X1 + X'2 = 0.49 ohm. The motor slip at full load is 3%, and the efficiency id 90%.
A 500kVA ,7200-240V, 60Hz, transformer with 2.2% impedance was severly damaged as a result of a dead short across secondary terminals. Determine a) The short-circuit current;
What is the de Broglie wavelength of an electron at150eV. what is the wavelength for electrons at 10keV, which istypical of electron microscopes. Comparing this to visiblel light,comment on the advantages of electron microscopes.
The transfer function of a second order system is given: T(s) = 1.05x10^7/(s^2 + (1.6x10^3)s + 1.05x10^7) a Find the values of f, fn, Ts, Tp, Tr, and % Overshoot.
Calculate the standard enthalpy change for the reaction of an aqueous solution of barium hydroxide, Ba(OH)2, with an aqueous solution of ammonium nitrate, NH4NO3, at 25°C. The complete ionic equation is
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