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A system is called complex if a real-valued input can produce a complex-valued output. Suppose a linear, time-invariant complex system has an impulse response of h(t)= j[u(-t+2)-u(-t)]
A shunt-connected a DC motor has zero rotational losses and R A = 0. Assume that R A and R adj is constant [except in part (d)] and that is directly proportion to feild current. For VT= 200 V and P
Use Matlab to find out what function in time x(t) resulted in the Fourier Series Coefficients Xn = j/(2*p*n) for n?0 and X0=0. You can accomplish this by synthesizing the signal from sufficient freq
A pn-junction is uniformly doped and has dopant concentration of NA = 4 x10^16 cm-3 in the p-region at 300K. AT zero bias, 20% of the total space charge region (W) is extended in the p-region. Calcu
An Al0.3Ga0.7As p-n junction LED with doping level ND = 1 x 10^18 cm-3 on n-side and NA=1x10^15 cm-3 on p-side has Vf = 0.9 V forward bias across its junction. The LED cross-section is 200 µm
a) Draw a sketch of the spectrum of x(t) = sin3(400πt) Label the frequencies and complex amplitudes of each component. Determine the minimum sampling rate that can be used to sample x(t) without al
Draw a circuit model of the path of current through the human body for a person touching a voltage source with both hands who has both feet at the same potential as the negative terminal of the volt
The sampled signal x[n] obtained above is processed by the ideal D-to-C converters with the sampling rate (600 Hz). Obtain the representation of the continuous signal. Determine the Nyquist samplin
Given two NPN BJTs having b = 100 and ro = 100 KW. Using a single 5V dc power supply, design a differential pair amplifier having 1mA bias current in each transistor. What is its maximum gain for li
Design a BJT differential pair amplifier (balanced in, unbalanced out) that provides 20 dB differential gain and 40 dB CMRR. Assume b = 100, ro = 50 KW. Use dual dc power supplies +Vcc and -Vee.
In the region of space for which x > 0, the x-component of a steady magnetic field is described by Bx = bx^2 where b is a positive constant that has dimensions of T/m^2. (a) Which of Maxwell's eq
Suppose a random process is X(t) = A[cos(2fot + T)] where A and Fo are constants and T is a random variable that is uniformly distributed over [0, 2p]. 1. Is X(t) wide-sense stationary 2. Find power
F(a,b,c,d) = Σ m(7, 11, 12, 14) + Σ d(0, 10) (a) Find all of the prime implicants of F'. (b) Find a minimum product-of-sums for F. Note: F' is specified in (a) and F in (b).
F(a,b,c,d,e) = Σ m(0, 1, 2, 6, 7, 8, 16, 17, 19, 20, 25, 26, 29, 31) + Σ d(3, 5, 18, 27) (a) Find the essential prime implicants of F and indicate the minterm which makes each one essentia
Write an equation for the following sequence (use only 3 variables for the right-hand side): The overflow indicator V will turn on iff X is negative, Y is positive and D is positive, or if X is posi
Without using a truth table, find: (a) the minterm and maxterm expansions for F in algebraic and decimal forms (SOM,POM) (b) the minterm and maxterm expansions for F' in decimal form (SOM,POM).
A switching circuit has three inputs (A,B,C) and one output (Z). If A=0, the output Z is the exclusive-OR of B and C. If A=1, the output is the equivalence of B and C. (a) Find the truth table for Z
A switch turns the voltage source on and off. Evaluate the voltages across each of the capacitors and determine whether the energy changes due to the switch being turned on or off.
Design and sketch a band pass filter consisting of an RC high-pass filter with a cutoff frequency of 300 Hz and an RC low-pass filter with a cutoff frequency of 700 Hz. Carefully select the R and C
The carrier wave of frequency 100 MHz is frequency modulated by a sinusoidal wave of amplitude 20 V and frequency 100 kHz. The frequency sensitivity kf = 25 kHz/V. 1. Write expression for FM modulat
Convert the minimal SOP expression of f to use only two-input NAND gates using Boolean algebra Implement f using only NAND (7400) and NOT (7404) gates and demonstrate it to your lab TA Find the mini
An industrial assembly hall is continuously lighted by one hundred 40- W mercury vapor lamps supplied by a 120- V and 60- Hz source with a power factor of 0.65. Due to the low power factor, a 25 per
The upper half-space (where the line charge resides) is characterized by permittivity epsilon_1, and the lower half-space has permittivity epsilon_2. Find expression(s) for the scalar electric poten
Two infinite lines of charge, each carrying a charge density l, are parallel to the z-axis and located at x = 1 and x = -1. Determine the vector E at an arbitrary point in free space along the y-axi
The voltage v and the current i are two independent RVS with ηv = 110v, σv = 2v, ηi = 2A, σi = .1A Using Taylor series approximation find approximate the mean ηw and the standa