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Determine the magnitude, radial frequency, frequency, period, and phase for the following waveforms: (a) i1(t)=10cos(40t+170)A (b) v2(t)=34sin(380t+40)V
plot the frequency spectrum (both amplitude and phase spectra) using MATHLAB for |k|<=20 using the stem function. you will use the abs and angle functions in MATHLAB to find the magnitude and the
The current amplification factor β of a BJT is very sensitive to the base width as well as to the ratio of the base doping to the emitter doping. Calculate and plot β for a p-n-p BJT with
A motor with efficiency of 76% supplies 20 hp to a load. it's power factor is 0.6 (lagging). A voltage of 440 VAC (RMS), 60 hz is applied to the motor a) what is the real power applied to the motor
If an npn transistor is operating with the base transmitter junction forward biased and the base collector junction reverse biased. Given that the transistor has Ic=10mA and Ie=10.5 mA, determine th
Use Matlab to charge neutrality equation in order to plot the Fermi level as a function of doping vs. temperature for Si, GaAs, SiC, and GaN. Using Phosphorous as a donor dopant at 1e18, 1e16, 1e14,
A magnetic field of 2.0 T is applied to a bubble chamber to make the tracks of protons and other charged particles identifiable by the radius of the circles they move in. If a high-energy proton mov
An electron is released from rest at the negative plate of a parallel plate capacitor. If the distance between the plates is 5 mm and the potential difference across the plates is 5 V, with what vel
What current must be maintained in a square loop ( 50 cm on a side ) to create a torque of 1.0 N . m about an axis through its center and parallel to one of its sides when a magnetic field of magnit
What is the magnetic force on a 2.0-m length of ( straight ) wire carrying a current of 30 A in a region where the uniform magnetic field has a magnitude of 55 mT and is directed at an angle of 20o
A proton moves around a circular path ( radius = 2.0 mm ) in a uniform .25-T magnetic field. what total distance does this proton travel during a 1.0-s time interval
A continuous-time signal x(t)=cos(2πt) is sampled every T seconds, resulting in a discrete-time signal x[n] = x(nT) . Determine whether the sampled signal is periodic and if the signal is periodi
Determine whether the discrete signals below are periodic. If the signal is periodic, determine the number of samples per period. (a) x[n]=cos(πn) (b) x[n]= -3sin(.01πn) (c) x[n]= 1+cos((πn)
Group and phase velocity in uniaxial crystals: a. Derive an expression for the group velocity of the extraordinary wave in a uniaxial crystal as a function of the polar angle of the propagation vec
Suppose a radio frequency signal is sampled at fs = 500 MHz. What frequency bands from 250 MHz to 1000 MHz will alias into the FM band, 88-108 MHz
A 2.0 C charge moves with a velocity of ( 2.0i + 4.0j + 6.0k ) m/s and experiences a magnetic force of ( 4.0i - 20j + 12k ). The x component of the magnetic field is equal to zero. Determine the y
A parallel plate capacitor of capacitance C0 has plates of area ( A ) with a separation ( d ) between them. When it is connected to a battery of voltage ( V0 ) it has charge of magnitude ( Q0 ) on i
A 3.0 μF capacitor is charged to 40 V and a 5.0 μF capacitor charged to 18 V are connected to each other, with the positive plate of each connected to the negative plate of the other. What is
Draw the logic diagram of a four-bit register with four D flip-flops and four 4 X 1 multiplexers with mode selection inputs s1 and s0. The register operates according to he following function table
Design a unity gain first order lowpass digital filter with a 3dB point at Fc=100Hz using Bilinear Transformation. The sampling rate is 1kHz. A first order analog filter is given by Ha(s)=θc/(s
A coaxial cable has an inner conductor of radiua a = 0.8 mm and an outer conductor of radius b = 2.6 mm. The conductors have σc=5.8x10^7 [S/m] uc=uo. ε=ε0 they are separated by
A power amplifier has a gain of 20 dB and an input level of 2 volts. Assuming that the input and output impedances are the same, what is the voltage level at the amplifier output
Design a system that repeatedly computes and outputs the sum of all positive numbers within a 512 word register file A consisting of 32-bit signed numbers.
The first element is located at the origin and the magnitude of the current on each element is: Element 1: i1=d1 (at z=0), Element 2: i2=d2 (at z = quarter wavelength), Element 3: i3=d3 (at z=half w
Identical 4.0-µC charges are placed on the y axis at y = ±4.0 m. Point A is on the x axis at x = +3.0 m. Determine the electric potential of point A ( Relative to zero at the origin)