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obtain the rotational losses of a universal motor if you are only given the impedance, RPM, voltage,poles, frequency, current and pf? Basically I need to solve for the shaft torque and efficiency but can't get my Pout value without the rotational losses. I've already solved for the Power Developed but need the rotational loss to get my Pout. Here are the parameters: 110V, 60 Hz, 2 pole, operating at 12,500 RPM at full load and draws a current of 5A at pf .74 lagging. Rs = .5 ohms, Xs = 2.235, Ra = 5.2, Xa = 12.563.
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
assuming a perfect diode, I have a small circut which has three legs joined at the center. One leg has a +12V supply and a 1K ohm resister. Second leg has a -16 Volt supply witha 2K ohm resister, and the third has a perfect diode, with a 4K ohm re..
If Vid is 20-mV peak-to-peak sine wave applied in a balanced manner but superimposed on Vcm = 0.5 V, what is the lowest value that Vdd must have to ensure saturation -mode for Q1 and Q2 at all times. Assume Vt = 0.5 V.
Some of the particles comprising atoms react to each other in a way that scientists categorize as electric charge. There are two fundamental types of electric charge: positive and negative.
Discuss different applications that could use non-inverting and inverting amplifier circuits. Will the actual op Amp characteristics cause any challenges it used for each application.
In order to control the slope of a ramp produced by an integrator, the values of Vin, R, and C may be varied. Assuming a fixed value for C of 10 μF, would it be better to have a relative large Vin with a correspondingly large value of R
Message signal m(t) = 0.6sin(27r3000t + pi/9) For a carrier signal with amplitude Ac = 4,fc = 40MHz, What is the signal bandwidth if we use AM with ka = 0.7 DSB-SC FM with kf = 5000 - HZ/V
The trees can be harvested early at reduced yield: the net profit is then $250T per $1,000 initial investment, for T in years. To the nearest whole year, at what T is the rate of return largest
A natural gas power plant has a condenser that extracts 18,000 Btu/kg of natural gas. Compute the mechanical energy of the turbine and the overall system efficiency.
Use Routh- Hurwitz method to determine if the system is stable or unstable. If it is unstable how many poles are in the right half of the s-plane (s^2+2s-5)/(s^3+2s^2-8s+6)
An attractive fuel for nuclear fusion is deuterium H 1 2 which constitutes about .015% of the hydrogen in the oceans If each deuterium nucleus produces 7.4 MeV in a fusion reaction, how much energy would be released if each H 1 2 atoms in the 4 gram..
Four Resistors are connected in parallel. what is the equivalent resistance if their individual resistances are r1 =100 Ohms ±5% tolerance r2 =470 Ohms ±5% tolerance r3 =330 Ohms ±10% tolerance r4 =1000 Ohms ±5% tolerance
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