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A(1/4) kW, 230 V, 50 Hz, 4-pole split-phase motor has the following circuit model parameters:
Friction, windage and core-loss = 45 W.
(a) Calculate starting torque and current of the motor.
(b) Calculate the performance of the motor at a slip of 0.035. (The auxiliary winding is open-circuited.)
The loop transfer function of a single-loop negative feedback system is: L(s) = Gc(s)G(s) = K(s + 2.5)(s + 3.2) / (s2(s + 1)(s + 10)(s + 30)) This system is called conditionally stable because it is stable only for a range of the gain K
Calculate the IL, IR, in polar notation, for the following circuit.
use nodal analysis to find IO and IS in the circuit in figure 1.- Use nodal analysis to find VO in the network in fig.2.
An oil-fired power plant has a condenser that extracts 28,000 Btu/kg of oil. Compute the mechanical energy of the turbine and the overall system efficiency
What should be the value of R to establish 5 mA in the circuit?
Create a complete C++ program that prompts the user to enter his or her height in inches and outputs the following: Output "Height is six feet or more." when the user's height is 6 feet or more. Output "Height is less than five feet."
How might you connect them with one wire? Show the path of the current in each case.
A particular load has a pf of 0.8 lagging. The power delivered to the load is 40 kW from a 220-V rms 60-Hz line. What value of capacitance placed in parallel with the load will raise the pf to 0.9 lagging
Calculate the speed and the current when the motor field winding is shunted bya divert or of equal resistance as that of the field winding.Neglect all motor losses and assume the magnetic circuit a sunstaturated.
The voltage and current at the terminals of the circuit element are zero for t 0 they are v = 90-90e^(-1000t) V i = 50e^(-1000t) mA A) Find the maximum value of the power delivered to the circuit B)
Find the mathematical expressions for the voltage vC and the current iC when the switch is closed. - Sketch the waveforms for vC and iC.
Estimate the approximate final speed v2 of the golf ball
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