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An 80 kHz sinusoidal voltage has zero phase angle and a maximum amplitude of 25 mV. When this voltage is applied across the terminals of a capacitor, the resulting steady state - state current has a maximum amplitude of 628.32 microamps.
a) What is the frequency of the current in radians per second?
b) What is the phase angle of current?
c) What is the capacitive reactance of the capacitor?
d) What is the capacitance of the capacitor in microfarads?
e) What is the impedance of the capacitor?
Discuss these possible reasons, indicating which are the most important: The field is so young; such different needs; there are so many types of systems; and people with widely different backgrounds are developing.
In a multiuser CDMA system of DSSS, all transmitters are at equal distances from the receivers. The additive white Gaussian noise density Sn(f) = 5x10^-7 W/Hz. BPSK is used by all users with bit rate = 16 kb/s. There are 16 users.
An 8mm thick brass [E=83 GPa; v = 0.33] plate is subjected to biaxial stress with sigma x = 180 MPa and sigma y = 65 MPa. The plate dimensions are b = 350 mm and h = 175 mm.
At what temperature are the two carrier densities equal?
find the reactive vars which the compensation equipment must supply to maintain the voltage profile (a)when the line supplies load of 50 Mva at 0.85 p.f lagging (B) when the line is open circuited at the recieving end.
Find the electical force of attraction of a 6 coulomb positive charge and an 18 coulomb negative charge separated by a distance of 12 centimeters.
the only things that should show up on the LCD display are the last four of your UID or "0000." The m1605.ucf file is the user constraint file that defines where the nil605.vhd I0 pins are assigned on the FPGA. Once your design is working, report ..
Consider the noise level table included in page 2 and thedesign equations included in pages 3 and 4 for circular and square membranes. Consider the radiusof the circular membranes limited to values ≤500 μm and square membranes with sides ≤1000 μm
A 10 ohm resistor carries a current of 5 amps. How much energy, in joules, will be disapated in the form of heat during a period of 6 seconds
A coil wound around a ferromagnetic core is supplied by a 120V, 25 Hz source. Determine the percent change in eddy-current loss if the coil is connected to a 60Hz source with the same flux density.
The DC resistance of the primary windings of a certain transformer is found to be 22ohm while the resistance of the secondary windings is 0.8ohm. When a 60 Hz sinusoidal source is connected to the primary "with the secondary open circuited"
Use the table on slide 11 of this lecture and determine the line parameters L and C of the transmission line. Consider that the TL is lossless and µ = µ0 for polystyrene. Then find the characteristic impedance of the line Z0, phase velocity
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