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A single phase 1750 RPM moter operating at rated power has a power factor of 0.75 lagging. the line voltage is 208 VAC @60 Hz and the line current is 27A. Assuming 83% is a reasonable efficiency for moters of this size what is the actual power produced by the motor, in watts and horse power?
Two Random variables have a joint probability distribution function defined by F(x,y)=0 X 1y>1 A). Sketch this distribution function. B). Find the joint probability density function and sketch it.
A closed-loop system has a hold circuit and process as shown below. Determine G(z) when T = 1 and Gp(s) = 2 / (s + 2). A sampled-data system such as that presented in the above problem has a sampling period T = 0.05s
The configuration is shown in Figure 6.5. Use six LEDs as shown in Table 6.1 to represent the outputs. The Time in This State can be met in several ways. One method is to use a debounced switch as input, another to input a 1 Hz clock.
Research about origin, formation process, and age of oil. What type of biota contributed to oil formation How is that linked to marine environment being conducive to oil formation What are the prospects for offshore oil beds
Approximation of quarter circle using Bezier curve, Determine the Bezier curve of order 3 that approximates a quarter circle centered at (0,0), (1,0), (0,1).
Needs to oscillate 5 times per second. Amplitude envelope increases 25% every second. Amplitude is 1 at t =0. The derivative at t = 0 is 54.6371. the sinusoid has to be a cos(2*pi*5*t) for the exponential exp(at).
A 600kVA, 600 V, 0.9-PF-leading, Y-connected synchronous motor has a synchronous reactance of 1.0 per unit and an armature resistance of 0.1 per unit. At the current time, EA = 1
Three -phase motor is connected to a three-phase power source that has an abc phase sequence. the first load is a wye-connected, three-phase motor withdrawing a line current of 20A at a 0.8 lagging power factor.
Show that for wires of identical dimensions but made of different materials, such as copper and aluminum, the resistance is proportional to the resistivity of the material. the resistance of a certain copper wire is 1.5.
why does the instruction set include an INC (DEC) instruction to increment (decrement) a memory byte when the same function could be accomplishe using an ADD (SUB) instruction
The input impedance of a JFET used in COMMON SOURCE configuration, is defined by two considerations: The JFET itself has a VERY HIGH INPUT IMPEDANCE, because the input is the GATE to SOURCE junction that is REVERSE biased
If a stepper motor has a step-angle of 7.5? , what digital input rate is required to produce a rotation of 10 rev/sec What will be the step-angle for a hybrid stepper motor with eight stator windings and ten rotor teeth
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