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A DC motor has a terminal voltage of 5V, a motor constant of Ka = 5.2 x 10-3 Vs, and an armature resistance of 500-ohm. Find the stall current, max speed in rotations per minute (RPM), and armature current at a speed of 480.769 radian/s (4591.006 RPM).
What is the relationship (if any) between the armature current at max speed, speed at the stall current, and the armature current at a speed of 480.769 radian/s?
determining whether the number divided evenly can be accomplished by determining if there is a remainder. Implement the program using a for loop for the calculations. Additional hint: a break in the loop can make the program simpler, though it is ..
A synchronous generator rated 1350 MVA at 0.9 pf, 22.5-kV, Xs=11.6% is connected to a power system through a 1500 MVA, 7.9% 24-kV/230-kV generator step up transformer. The power is generated into a 230-kV system.
A rod of ultrahigh purity copper is 1 cm in diameter and 10 cm long at room temperature. Its mass is found to be 70.18 g. Determine the inter-atomic distance between two nearest- neighbor copper atoms.
Draw a strain gauge circuit and its external components to attach to a conveyor mounted only at the ends to measure the load at the center of the conveyor. What type of testing would you need to do to establish a baseline and calibration curve for..
What value of emitter resistor would you choose, if: a) You have to amplify the signal of a microphone that has an internal resistance of 100K using a Common Emitter bias configuration b) you have to drive a load of 50 with an Emitter Follower cir..
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
How are errors handled by the different windowing systems What different types of errors can occur and how do these windowing systems handle these different types of errors.
What is the purpose of core in hollow solder wire What is tinning, and why is it important Why is safety so important when soldering Why has lead-free solder replaced lead-based solder
A -find the dc collector current and the dc voltage at the collector. B Replacing the trasistor by its T-model, draw the small signal equivalent circuit of the aplifier. Analyze the resulting circuit to determine the voltage gain vo/vi.
If these nominal non--ideal parameters are replaced, one at a time, by A = 50000, Ri = 1 M and R0 = 150 (each of which is twice as bad as the nominal values), which parameter has the largest impact on the output voltage
A separately excited dc motor turns at 1200rpm when the armature is connected to a 115V source. Calculate the armature voltage required so that the motor runs at 1500rpm.
A machine produces photo detectors in pairs. Tests show that the first photo detector is acceptable with probability 3/5. When the first photo detector is acceptable, the second photo detector is acceptable with probability 4/5.
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