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A 220-V three-phase six-pole 50-Hz induction motor is running at a slip of 3.5 percent. Find:
(a) The speed of the magnetic fields in revolutions per minute
(b) The speed of the rotor in revolutions per minute
(c) The slip speed of the rotor
(d) The rotor frequency in hertz
For what range of values of a is the system stable?
Suppose a dc source has a potential difference of 6.00 V and the current is 0.100 A. Determine the amount of energy provided to the circuit in 1.00 s. How much energy is transferred to the load in 1.00 hour?
Basics problems of Induction motor, The frequency of the induced rotor currents in the rotor of a 60 Hz induction, machine is 2 Hz. Furthermore, the fields in the air gap turn at -40 rpm with respect to the rotor.
calculate the sending and receiving end voltages, power flows and transmission losses.- Increase, the demand to 1000 amps and recalculate the values.
Write complete ionic and net ionic equations for each of the following molecular equations. a. 2HNO3(aq) + Mg(OH)2(s) ----- > 2H2O(l) + Mg(NO3)2(aq) Nitric acid, HNO3, is a strong electrolyte.
Construct a horizontal line on your I versus V graph at the point I = 1 mA. This line will intersect each of the sloping lines at two separate points. Explain the significance of each of these intersections
Determine the capacitance as a function of Ri and Ro. If the dielectric is polystyrene of relative permittivity, εr = 2.6, calculate the capacitance of an isolated conducting sphere of a radius 0.4cm(i.e., Ri=0.4cm and Ro goes to infinity).
Contains basic function in MATLAB files. Write MATLAB script(s) to plot the basic signals below in two subplots. The upper subplot should be a continuous waveform (don't do g) and the lower subplot should be a discrete plot.
The Maxwell-Boltzmann distribution is often used to approximate the Fermi- Dirac distribution function. For what range of (E-Ef)/kT is the Maxwell-Boltzmann approximation accurate to within 10%
Find a multiple output AND-OR gate circuit to realize the following function. You should be able to implement this in 6 gates total. Show your Karnaugh maps. F= ac + ad + b'd
A circuit board with a dense distribution of integrated circuits (ICs) and dimensions of 120 mm by 120 mm on a side is cooled by the parallel flow of atmospheric air with a velocity of 2 m/s.
A total of 33 MHz are allocated to a system which uses 2x25 kHz for full duplex (i.e., each channel is 50 kHz). What is the number of channels per cell?
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