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Three parallel three-phase loads are supplied from a 207.85-V rms, 60-Hz three-phase supply. The loads are as follows:Load 1: A 15 hp motor operating at full load, 93.25 percent efficiency, 0.6 lagging power factor. Load 2: A balanced resistive load that draws a total of 6 kWLoad 3: A Y-connected capacitor bank with a total rating of 16 kvar.a. Sketch the three-phase circuitb. What is the system total kW, kvar, power factor, and the supply current per phase?c. What is the system power factor and the supply current per phase when the resistive load and induction motor are operating but the capacitor bank is switched off?
A 300 ohms resistor is connected across the 300 ohms antenna input of a television receiver. The bandwidth of the receiver is 6 MHz, and the resistor is at room temperature (20' C). Find the noise power and noise voltage applied to the receiver in..
Suppose it is known that a 5MHz transducer axis makes an angle of 30 degrees relative to the direction of motion of blood in a vessel. If the Doppler frequency is measured to be +500Hz, what is the velocity of the blood
The total current in a semiconductor is constant and is composed of electron drift current and hole diffusion current. The electron concentration is constant and is equal to 10^17 cm^-3. The hole concentration is given by p(x)
If non-ideal interface trap density of Dit = 5x1010/cm2/eV is to be considered, what is the shift in the flat band voltage. Assuming all interface traps are acceptor-like (negatively charged if filled with an electron and neutral if empty)
The One river Hydroelectric Project generated power for BPA along the Two River from the early 1800s until 1900, when it was decommissioned due to environmental issues. The maximum flow rate through the system was 25 m3/s, and the hydraulic head w..
a. Convert all the per unit values to a common kVA of 100 and transmission side voltage base of 2500V b. To maintain one per unit voltage at rated load, find the per unit generator voltage needed.
A 78oham lossless planar line was designed but did not meet a requirement. What fraction of the widths of the strip should be added or removed to get the characteristic impedance of 75oham
how does your answer change if the bubble is elongated in the direction of the electric field and sphere and the dielectric shell are placed in an initially uniform electric field E 0 in the z direction.
Desired D.C. Output : 10 V Load Variation: 0.3 kilo-ohms - 10 kilo-ohms Ripple Factor: Less than 0.1% for 2 kilo-ohms load Load Regulation: Better than 3 mV for a 1 mA change in load current
If V = 12sin( 2 pi 1800 + 45). What would you read on a DMM Would this voltage be for an inductor or capacitor What would be the frequency and phase What does the 12 stand for Explain.
Which is the best alternative to buying a machine assuming an interest rate of 4% and a time span of 6 years. Compare using Present Values. A: Buy new machines for $25k. They earn $5k per year and their maintenance costs are $125 per year.
A 5 Kg silicon ingot is doped with 10^16 cm^-3 phosphorous atoms. what is the total mass of the phosphorous in the ingot. the atomic mass of silicon and phosphorous are 28.09 g/mol and 31.02g/mol.
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