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The heart of all motors and generators is a rotating magneticfield. We discussed, covered and derived the equations for arotating magnetic field produced by a symmetric 3-phasestator-winding arrangement driven by a symmetric 3-phase current. Using this methodology, derive the rotatingmagnetic field equation and coil arrangements for a 2-phase electric machine.
The 32X6 ROM, together with the 2^0 line, converts a six-bit binary number to its corresponding two-digit BCD number. For example, binary 100001 converts to 011 0011(decimal 33). Specify the truth table for this ROM.
The output/ input of a system is 30dB. detrmine the ratio Express x(t)=4*cos(100*t-45)+ 2*cos(250*t+30) in terms of exponential functions Then Detrmine the phase angles(in degrees) of the two frequency components of x(t).
A Thevenin equivalent can also be determined from measurements made at the pair of terminals of interest. Assume the following measurements were made at the two external terminals a, b of a circuit.
The frequencies Of the signal are 600 Hz and 1.6 kHz with the carrier at 90 kHz. If the rms voltage levels for the 2-tones is 3.22 volts and the load resistor is 71 Ohms, find the output frequency spectrum, PEP, and the average power output.
A 35 kVA transformer supplies a load of 12 kW at a power factor of 0.45 lagging. Find the percentage of full load the transformer is carrying. If additional unity power factor loads are to be served with the same transformer,
A buck converter has Vs=30 V, Vo=20 V, and a switching frequency of 40 kHz. The output power is 25 W. Determine the size of the inductor such that the minimum inductor current is 25 percent of the average inductor current.
A WLAN uses the 1-Mbps IEEE 802.11 infrared standard and the 16-PPM modulation scheme. Compute the period of transmission (time between bits).
What is the maximum data rate possible for a standard telephone circuit with an SNR of 1023 and BW of 3 KHz using 8 bits per symbol
A circular coil of 200 turns of radius a=60mm, total resistance R=2 ohm, and no self inductance is rotated about a vertical diameter with uniform angular velocity =200 rad/s in a horizontal magnetic flux B of 0.25 Tesla.
Is connections in transformer are mains connected with the transformer or winding connections If it is mains connections then how can we connect zig-zag transformer in delta configuration
a machine processor address a maximum 2^24 bytes of memory. What is the maximum number of 32 bit words that can be store in memory.
b. Draw the logic diagram, using the original Boolean expression. d. Obtain the truth table of the function form the simplified expression and show that it is the same as the part one. e. Draw the logic diagram from simplified expression, and compare..
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