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Consider a shunt-connected dc motor that has the magnetization curve shown in Figure. The dc supply voltage is VT = 200 V, the armature resistance is RA = 0.085 Ω, the field resistance is RF = 10 Ω, and the adjustable resistance is Radj = 2.5 Ω. At a speed of 1200 rpm, the rotational loss is Prot = 1000 W. If this motor drives a load that demands a torque of Tout = 200 Nm independent of speed, determine the motor speed and efficiency.
In the absence of any special knowledge of network conditions, the typical approach is to pick an arbitrary value, such as 3 s, and hope that this will converge quickly to an accurate value. If this estimate is too small, TCP will perform unnecess..
We are required to create a digital clock for the upcoming project. The class has been very disorgainzed and hard to follow, thus I've had a hard time keeping up with what's actually going on and don't quite understand all the material.
Writing the mathematical equations of a DC motor develop the complete model to derive the open loop transfer function between the operating speed and applied voltage.
The surface concentration is fixed at N0=1.8e20/cm^2 when diffusing boron into a uniformly doped n-type substrate. The atomic diffusion constant for boron in Si at the temperature of 950 C is 3.0e-15 cm^2/s.
An M-bit thermometer code for the number k consists of k 1s in theleast significant bit positions and M-k 0s in the more significant bit positions. A binary-to-thermometer code converter has N inputs and 2N-1 outputs.
Would already determined "Thevenin and Norton equivalents" be valid for any value of "load resistor" that may be connected between points A and B Why
Reduce the equation to the slope-intercept form and give the slope and the y-intercept.
The current in a device varies with time according to the function: i(t)= 3e^(-t/T) A. Where T is the time constant. How many time constants are required for the current to drop to 250 mA
if the user enters an invalid response (i.e.- anything other than ‘y', ‘Y', ‘n', or ‘N') the program should print an appropriate admonishment and repeat the question. Do not continue with the program or exit until the user enters an acceptable val..
A circuit connected in series contains a voltage source of 20 V, a 5 ohm resistor, and a variable resistor, R.
water flows in a circular pipe. at one section the diameter is 0.3 m the static pressure is 260 kpa gage the velocity
What do the terms static and dynamic allocation of memory mean. We use the terms ROM to identify read only memory and RAM to designate random access memory. What is the major difference between the two kinds of memory.
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