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A 220V, three phase, Y connected, synchronous motor has a synchronous impedance of 0.25 + j25 ohm/phase. The motor delivers the rated load of 80A at 0.707 pf leading. Determine a.) the excitation voltage, b.) the power angle, and c.) the power developed by the motor
A certain logic family has the following voltage parameters: VIH(min)=3.5V , VIL(max)=1.0V; VOH(min)=4.9V, VOL(max)=0.1V a) What is the largest positive-going noise spike that can be tolerated
A 60-Hz, 220-V-rms source supplies power to a load consisting of a resistance in series with a capacitance. The real power is 2000W, and the apparent power is 2500VA. Determine the value of the resistance and the value of the capacitance.
Assume the acceptable deviation is +- 5.8%. Thus, a nominal rms voltage of 120 V will range from 113 to 127 V. Suppose the line to line voltage at Customer A is 13.8kV, the load at customerA consumes complex power (1.2+j1.2)x 10^6 W.
Consider a uniform electric field of 50 N/C directed toward the east. If the voltage measured relative to ground at a given point is 80 V, what is the voltage at a point 1.0 m directly west of that point
A positive charge of 625 nC is uniformly distributed around a circular ring of radius 3 m that is positioned in the x-y plane. The center of the circle is at the origin. The relative permittivity of the medium is Epsilon_r = 1.
A capacitor is formed by two metal parallel plates with the area 1.9 um^2. The distance between plates is 1.8 um. The gap between plates is filled with the dielectric material with dielectric constant 15. What is the capacitance of this capacitor
A 1(lambda) wavelength long line has parameter R=0.2 Ohm/m, G=0.002 mho/m, L=15 muH/m and C=2.31pF/m. The line is operated at a frequency f=2.5 GHz. It is terminated with a load impedance of 100 Ohms.
Find the signal-interference ratio in dB when 120-sectoring antenna is used and the propagation coefficient n =3. If a cluster is replicated 10 times within the system, find the total number of users that can be served with this wireless cellular sy..
Construct an inverting Dc integrator circuit using a jumperwire to act as the switch across the feedback capacitor. Notice that the input voltage is 0 V, so the output voltage shouldnot change, even after the switch is opened.
Show how you would build a 128 X 8 RAM memory using 32 X 4 RAM chips. Give a play-by-play account of how -36 (decimal) would be stored in location 80. (using block diagrams for the 32 X 4s, but showing all other details)
Determine the line voltages and line currents for the balanced 3-phase system, shown in the given image.
Determine the expression for the frequency response H(Omega) of a causal IIR LTI discrete-time system characterized by the input-output relation. where |a|
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