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A 10-hp, 250-V shunt motor has an armature circuit resistance of 0.5 Ω and a field resistance of 200 Ω. At no load, rated voltage, and 1200 r/min, the armature current is 3 A. At full load and rated voltage, the line current is 40 A, and the flux is 5% less than its no-load value because of armature reaction. Compute the full-load speed.
Suppose the operational amplifier in the following circuit is ideal.
The curie (Ci) is a commonly used unit for measuring nuclear radioactivity: 1 curie of radiation is equal to decay events per second (the number of decay events from 1 g of radium in 1 s).
Determine the primary current, primary voltage, and power factor.
Is this a reasonable number from a physiologic point of view when compared to the average velocity in the major and minor blood vessels in the human body?
Cadmium and zinc electrodes are placed in an electrolyte solution. Calculate the current that will flow through the electrodes if the equivalent resistance of the solution is equal to 8 kΩ.
Assume that losses cannot be offset against revenues from other operations for tax purposes (i.e., no tax credits in years when the plant makes a loss). Estimate the following:
What is the armature current corresponding to the maximum torque?
A 50-kW, 230-V compound generator has the following data: armature-circuit resistance 0.05 Ω, series-field circuit resistance 0.05 Ω, and shunt- field circuit resistance 125Ω.
Estimate the diffusion coefficient of Oil Dispersant A in a 10 mole percent Dispersant A -sea water mixture. The concentrated solution is non-ideal
And if the reactant was in excess to the waste stream and was modeled with 2nd order kinetics equal to k = 1000 g-moles per liter minute --- what does this mean?
The physical properties of the fluid are: density 875 kg/m3, viscosity 1.46 mN m-2 s. Also, determine the NPSH, at this flow rate, if the vapor pressure of the fluid at the pump suction is 25 kN/m2.
How much transmit power is required (disregarding power losses at transmitter and receiver ends) for a maximum BER of 10-5, when using:a. Coherently detected BPSKb. By how much must transmit power be increased to maintain the maximum BER of 10-5 if t..
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