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It is required to design the DC motor to run a small size electric vehicle to beused inside an airport building to help the transportation of old people. Thevehicle is supposed to carry a maximum of 4 persons at the highest speed of 60Km/hour. The engine is driven by a 200 V battery capable to energize the motorfor 120 Km before being recharged. The efficiency of the motor must bebetween 85 to 90 percent. The motor shaft diameter is expected to be within(0.2 to 0.4 m). Give the size of the battery required in AH (Ampere Hour).Choose and estimate all the design characteristics of the motor, finally displayall the power flow diagram results including efficiency and speed regulation ofthe motor. Give all assumptions taken
Use Gauss's law to obtainexpressions for the electric field intensity E in both regions: r> a and r
We use the time constant to characterize transients in electric circuits. In physics, the half-life is often used to characterize the exponential decay of physical quantities such as radioactive substances.
An optical communication system employs a photodetector whose output is modeled as a Poisson(λ ) random variable X. Find the second moment and the variance of X.
Consider the discrete-time sinusoid given by x[n] = A cos(ω n+ φ), where x[n] may or may not be periodic. For it tobe periodic with a period of N, it must satisfy x[n] = x[n + N] forall integers n.
A heat pump maintains a dwelling at 68 F. When operating steadily, the power input to the heat pump is 5 hp, and the heat pump receives energy by heat transfer from 55 F well water at a rate of 500 Btu/min.
In rectangular form (numerical values required to nearest 0.1) what is the input impedance of a λ/8 section of 50 ohm line connected to a 200 ohm load. Include a figure showing the configuration having the input impedance to be calculated.
Design an integrator whose output voltage Vo(t) is related to the input voltage Vin(t) by Determine the rate of integrator drift with Vin = 0 if the input-offset voltage VOS is 2mV
A 415V 50 Hz three phase supply has been divided into three balanced loads, as follows: LOAD 1 (STAR): 15 kVA at a power factor of 0.60 lagging; LOAD 2 (DELTA): 24 kW at a power factor of 0.55 lagging;
Suppose we need an amplifier with input resistance of 500 kO or greater and a voltage gain of -10. The feedback resistors are to be implemented in integrated form and have values of 10 kO or less to conserve chip area.
Assume that there is a resistance of 2.70 k in a system and there is a current of 2.2 Amps flowing thru it. How much energy is consumed by this component in 24 hours
If the first bit of the opcode is 0, then there arethree opcode bits. If the first bit of the opcode is 1 and thesecond bit of the opcode is 0, then there are six opcode bits. Ifthe first bit of the opcode is 1 and the second of the opcode is 1,th..
A wave is specified by y = 8cos2π(2t-0.8z), where y is expressed in micrometers and the propagation constant is given in μm-1. Find (a) the amplitude, (b) the wavelength, (c) the angular frequency, and (d) the displacement at time t=0 and z=4 μm.
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