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LINEAR MOTOR VEHICLE DESIGN
Design a linear DC motor for propelling and braking a track-guided vehicle. The vehicle contains a generator to power the electromagnet with current Ic for the generation of the flux density B. The track region carries a current . Assume that the mass of the vehicle is 10 tons (10000 kg), and it accelerates from 0 to 80 Km/hour in 60 seconds. Consider the total length of the flux path in the magnet to be 8 meter and that the magnet cross section is 1 m2 , and that the air gap is of length 2 cm and its cross section area is twice that of the magnet. Take the track width to be 2 meters. See figure for illustrations.
Find an appropriate values for le and It, the number of turns N and the relative permeability of the iron of the magnet. Assume that you have 10 of such magnets inside the locomotive.
The springs effect is addressed below. As a relay some contacts are connected to, and move with, the armature. Other contacts are stationary and would make or break contacts as the armature moves.
An LED is rated at VF = 1.6 Volts to 2.0 Volts at IF = 20 mA. What value of series resistance is needed to limit the LED current to 20 mA when this LED is connected to a 32 Volts peak source
Use MATLAB to make the following plots of fields associated with propagating modes in a rectangular waveguide. The dimensions are a=2.3 cm, b=1.0 cm and the frequency is 18 GHz. Assume that the maximum electric field is 10mV/m.
Design a datapath that consists of four four-bit, general-purpose registers and one four-bit processor status word (PSW) register. There are four status bits, carry, overflow, sign, and zero; these will be stored in the four bits of the PSW.
What kind of wireless networking alternative makes the most sense when considering network links that span an appreciable portion of the globe?
Discrete sequence plot in Matlab, Consider the following formula, x[n] = x[n-1] + x[n-3] n>=3, find the rest of the sequence for 0
To the dismay of scientists on earth, an electrical fault causes an on-board thruster to fire, decreasing the speed of the spacecraft by 26.0m/s .If nothing is done to correct its orbit
Supply the quantisation levels (including zero) that are available. Do this for both the three and 4-bit ADC in table form. What is the resolution of each quantizer?
Determine the input x[n] so that the corresponding output of the above system is y[n] = delta[n] - delta[n - 1] Determine the output y[n] when the input is x[n] = cos(0.5pin) for - infinity
How would you develop a looping program in MIPS that will take a series of decimal numbers and arrange them in ascending order from smallest to largest. The sequence of nine numbers are: 5, 3, 8, 9, 2, 4, 1, 7, 6, 3, 8
A gallium-arsenide crystal at 200K containing only donor impurities was found to have hole concentration to be one fifth that of the electron concentration. Determine the actual carrier concentrations and the doping concentration of the crystal.
The phasor voltage across a certain load is V = 1200√2
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