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An ideal 3 phasemachine runs at 1800 RPM with a torque or 20 Nm. It is connected to a 220 V line-to-linesource and draws a current of 14 A. Determine the power factor and the per phase magnetizing reactance for the machine.
A piston-cylinder assembly contains 2 kg of water vapor initially at 1 MPa and 250 oC. The water vapor is cooled at constant pressure until the water reaches a quality of 50%. a. Show the process on P-v and T-v diagrams with respect to the sa..
Reduce the two functions given below and implement them using fewest 8x2 ROM's. Draw a neat labeled diagram showing interconnection between the ROM's address and data lines, and content of each ROM.
The parameters of a certain transmission line operating at ω = 6×108 rad/s are L = 0.35μH/m, C = 40 pF/m, G = 75 μS/m, and R = 17 Ω/m => α=0.0943 Np/m, β=2.2467 rad/m, λ=2.7966 m, Z0 =93.623-j3.6368
Determine the transfer function of the second-order (2 poles) lowpass Butterworth filter with a 3-dB cutoff frequency of 5 kHz. Design it using the Sallen-Key lowpass filter configuration, find all the values of the circuit elements
A. determine the mean, variance, and standard deviation B. find the three quartiles and the interquartile range C. Prepare a box plot for the data and determine if there are any outliers present.
You happen to have a 5-V regulated power supply that you bought at Midwest Surplus Electronics in Fairborn, Ohio. Measuring the output voltage with your trusty voltmeter, you get an open-load reading of pretty close to 5 V.
A circuit is needed to display a 4-bit value on the LEDs of the logic designer. This value can come from two different sources. Design a circuit using four 2-to-1 multiplexers to select which of the two values to display on the LEDs.
For the circuit of Figure the following parameters are given with Vcc = 18 volts DC: Rs = 0 ohm r pi = 1000 ohm Rb = 1750 ohms C1 = 10 microfarads gm = 50mS RL = 100 ohms Ce = 0.1 microfarads Re = 135 ohms C2 may be considered very large
In designing a low-pass filter for an audio system, the filter stop band attenuation must be at least 40 dB at a frequency that is 2 times the passband frequency. The attenuation in the passband must be less than 1 dB.
an induction motor when connected in delta and started direct on line produces a starting torque of 60Nm and consumes 80A. if the same motor is started using the soft start equipment with the voltage set at 0.8 of the line
A 3-D cubic unit cell contains four atoms whose centers are positional halfway up along each of the vertical cell edges and one atom each centered in the middle of the top and bottom faces.
When finding the inverse Z-transform of functions with z-1 terms in the numerator, the fact that z-1 can be thought of as a delay operator can be used to simplify the computation. Consider X(z) =1 - z-10 / 1 - z-1
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