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An abc-phase-sequence three phase voltage source connected in abalanced wye supplies power to a balanced delta-connected load. Theload current Iab = 4<20°Ampheres rms. Determine the line currents. (end question)
A 500 hp, three-phase, 2200 V, 60 HZ, 12-pole, Y-connected, wound-rotor induction motor has the following parameters: R1 = .225 ohm : R'2= .235 ohm Xeq = 1.43 ohm and Xm = 31.8 ohm and Rm = 780 ohm
Design a combinational circuit with five inputs and two outputs. The inputs are D2, D1, D0, and C1 and C0. The circuit calculates the remainder R1 and R0 of the division of the binary number
An ECG has a scalar magnitude of 1 mV on lead II and a scalar magnitude of 0.5 mV on lead III. Calculate the scalar magnitude on lead I.
A certain 100-watt light bulb costs 75 cents and lasts for 120 hours. Another longer-lived 100-watt light bulb costs $1.20. How much longer would the more expensive bulb have to last to make it a "good buy"
A PN junction has a doping concentration of 10^15, 10^16, or 10^17 cm-3 on the lightly doped n-side and of 10^19 cm-3 on the heavily doped p-side. Obtain series of curves of 1/(C^2) vs. V, where V rages from -4V to 0V in steps of 0.5 V.
A system with many components has 3 sensors (x, y, and z)monitoring separate sections of the system. Given that sensor xgenerates an output if there is a mild fault, sensor y generates anoutput if there is a serious fault
What is the bandwidth required so that the modulated signal contains atheist 90% of the power of the unmodulated carrier. A carrier signal c(t) = 10 cos(2pifct) is modulated using a message signal m(t) cos(20pit). The modulation is FM, with kf = 50.
Given three induction motors, find the real power P, the reactive power Q, and the apparent power S for each motor. Alsofind P, Q, and S for the total motor load. Motor 1: draws an electrical power of 100kw with power factor=.90 lagging.
A coaxial cable consists of an inner conductor of radius 1.2cmand an outer conductor of radius 1.8cm. The two conductorsare separated by an insulating medium (μ =4μo). If the cable is 3m long and carries25mA current, calculate the energy stored in..
Compute i2(t) through resist R, Find value of w0 for which the amplitude of the current |I2| is maximum, compute I2 for w=w0. compute the ratio of the amplitude of the voltage source over the amplitude of the voltage across the resistor.
1. What is the purpose of core in hollow solder wire 2. What is tinning, and why is it important 3. Why is safety so important when soldering 4. Why has lead-free solder replaced lead-based solder. Be sure to properly cite any sources of information.
You are designing a 2.4 GHz receiver with a 140 MHz IF. System design constraints require that the local oscillator power be minimized to reduce the potential for interference to other systems as well as to reduce the receiver power consumption.
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