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The Per-cent impedance of a single-phase electric load is 2.5. The base power is 100KVA, and the base voltage is 12.47KV
a find the per-unit impedance of the load if 400KVA and 20 KV are selected as base values
b find the ohmic value of the synchronous reactance
Ted Williams hits a baseball with an initial velocity of 120 miles per hour (176 ft/s) at an angle of f = 35 degrees to the horizontal. The ball is struck 3 feet above home plate. You watch as the ball goes over the outfield wall 420 feet away
Telephone signals are typically sampled at 8000 Hz. a. What is the time interval between samples b. What is the highest frequency that can be recovered from a sampled signal
the ends of a length of wire are labeleda and b. If the current in the wire is iab = -3A, are electrons moving toward a or b? How much charge passes through a cross section of the wire in 3 seconds?
Selecting a manufaturer from the us and observing wether its annual revenues are more than one billion or not when it is known that 30% of all manufacturers have annual revenues totaling more than one billion dollars.
Design a second-order band-pass filter for a system with sampling frequency of 18 kHz that is tuned for f=5kHZ The filter should not have any sample delay (the numerator and denominator orders are equal) and should have a stability margin of 92%.
An initially uncharged 2 microfarad capacitor is connected in series with a 10 k-ohm resistor and a 12 V battery. Find the charge and voltage on the capacitor after a very long time and find the voltage and charge on the capacitor after one time co..
Design and implement a vending machine (Moore FSM) with the following specification using VHDL. Accepts and returns only quarters Vends either Coke, or Pepsi, or a chocolate ba for a dollar Vends peanuts for 75 cents
A three-phase, wye-connected induction motor is supplied by a three-phase and foursin system with line-to-line voltage of 220V and the impedance of the motor is 6.3+j3.05Ohm per phase.
For w=w0, compute the ratio of the amplitude of the voltage source over the amplitude of the voltage across the resistor,Q=|U|/V0, when V0=sqrt(2), C=8.2microF, L=7mH, and R=1.5kOhms. Is this ratio larger or smaller than one
A sinusoidal voltage with a peak-to-peak value of 15 v is applied to an RC high-pass filter. If the reactance at the input frquency is zero
Draw a labeled sketch of x(t) over a few periods: be careful, make sure you follow the exact definition of x(t)
A CCD camera chip of dimensions 7x7 mm, and having 1024x1024 elements, is focused on a square, flat area, located 0.5m away. How many line pairs per mm will this camera be able to resolve. The camera is equipped with a 35-mm lens.
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