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Explain the process of commutation in a dc machine. Explain what are inter-poles and why they are required in a dc machine.
Select an appropriate QAM signal constellation, carrier frequency, and the roll-off factor of a pulse with a raised cosine spectrum that utilizes the entire frequency band. Sketch the system block diagram and the spectrum of the transmitted signal..
In the simulation, construct an arrangement of three charges in the shape of an equilateral triangle and find the net force on one of the charges. What happens as you move the charge between the other two charges?
A mealy sequential circuit has one input (x) and one output (z). z can be 1 when the fourth, eighth, twelfth, etc. inputs are present, and z=1 if and only if the most recent input combined with the preceding three inputs was not BCD encoding of a ..
two electronics students are discussing electrical units. student a says that electrical power is measured in units
The s-plane diagram of a filter shows that it has a cluster of four poles in the left-half s-plane that are arranged in a semi-circle near +/- j628. The filter also has two zeroes at the origin.
The bottom of the conduction band at one end of a silicon resistor is at the same energy level as the top of the valence band at the other end. What current flows through the resistor if the resistance is 1.12 kOhms
1. A 240 dc motor takes an armature current of 20A when running at 960 r/min. The armature resistance is 0.2ohm. Determine the no load speed, assuming negligible losses. 2. A 220 dc shunt motor has a srmature resistance of 0.3ohm.
A new 24-bit processor is being designed for operation in a cell phone (you can assume the word-size is 24 bits). Suppose the following memory values are being stored in memory that is organized where each location is 8-bits wide (byte addressable..
4.What is the fundamental benefit of PLC controls over manual controls 5.Describe the differences between the two methods of scanning during PLC logic solving. Which method holds the advantage over the other
Chelates are more stable than simple complexes? explain!
A sphere has a radius d and contains a non-uniform charge density of Pv=Po(1-r/d) C/m^3. (a). What is the enclosed Charge for r d (c). What is the electric field for r
Three identical single phase transformers, each rated at 100KVA, 7KV/3.5KV, are connected as a three phase transformer bank. The high-voltage side of the transformer is connected in delta and the low-voltage side is connected in wye.
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