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A 4 pole, 3 phase induction motor is given a supply of frequency 50 Hz. Rotor speed is 1490 rpm.a) Find slip s ?b) The relative speed between stator field and rotor field ?c) Frequency of stator field and rotor field ?
Compare and contrast transmit and receive diversity. Describe how each diversity type lead to an improvement in system performance.
calculate the resistor's resistance. If the bandwidth were cut to 25 kHz, determine the expected output meter reading.
A load consists of a resistance R in parallel with a capacitor of reactance X. The load is fed from a single phase supply through a line of impedance 8.4 + j11.2 ohms. The rms voltage at the load terminal is 1200 at 0 degress V rms,
Design a circuit that will add either 1 or 2 to a 4-bit binary number N. Let the inputs N3, N2, N1, N0 represent N. The input K is a control signal. The circuit should have outputs M3, M2, M1, M0, which represent the 4-bit binary number M.
A 150MW alternator generates an open-circut line-t0-line voltage of 12kV at nomial DC excitiation. When the terminals are placed in short-circuit the resulting current per phase is 8000A.
RC series circuit c=10,r=1,vs=15 and intial capictor charge q(0)=0.01. write standard form of the diffierential equations which describe the capictors charge q(t) t>0, obtain integration factor u(t),and determine general solution for q(t)
Maximum value of frequency deviation is fixed at 75 kHz for commercial broadcasting by radio. Modulation frequency W = 15 kHz, then find the transmission bandwidth of signal and deviation ratio.
A.) We would like to use a series lumped element b to match this load. What is the length of the line where the normalized input impedance is z= 1-jb(d/\lambda). If the rfequency is 1GHz , find the value of the lumped element(C or L).
Consider a virtual memory system that can address a total of 232 bytes. You have unlimited hard drive space, but are limited to only 8 MB of semiconductor (physical) memory. Assume that virtual and physical pages are each 4 KB in size.
A silica fiber has an outer diameter of 125 micro meter. What is the total volume of silica for a 1-km length? This fiber is wound on a spool whose unloaded diameter is 20 em. The spool height is 10 em. Compute the diameter of the fully loaded spo..
A conducting sphere in free space has a radius of a= 10cm. the capacitance of the isolated sphere is C= 4oa. now let's coat the sphere with a dielectric with fr= 3, and the thickness of the dielectric layer is d.
The voltage across a 0.2 H coil is given. What is the sinusoidal expression for the current?
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