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The following test results were obtained while Hopkinson's test was performed on two similar dc Shunt Machines: supply voltage is 250 V, field current of generator and motor was 6 A and 5 A respectively and the line current and motor current were 50 A and 400 A. Calculate the efficiency of motor and generator of each having 0.0150 Ω armature resistance.
Two three-phase wye-connected loads are in parallel across a three-phase supply. The first load draws a current of 20 A at 0.9 power factor leading, and the second load draws a current of 30 A at 0.8 power factor lagging.
How many atoms are found inside a unit cell of a simple cubic, body-centered cubic, and faced-centered cubic crystal How far apart interms of lattice constant a are nearest neighbor atoms in each case, measured from center to center
What fraction of these measurements is more than five units away from zero?
You've formed a band, despite advice to the contrary. Actually, the band is pretty good except for the fact that the lead singer (who owns the drum set, the microphones, and the garage where you practice) is a bit tone-deaf.
Explain why there is such a high failure rate for implementations involving enterprise applications, business process reengineering, and mergers and acquisitions.
A Y-connected load has an impedance of 25+j12 ohms in each phase. It is desired to raise the load power factor to .95 lagging. (a) What size capacitor should be placed in parallel with each phase impedance if frequence = 60 Hz
CML with a PDP of 25 fJ is to be used in a chip design that requires 50,000 gates. The chip will be placed in a package that can safely dissipate 20 W. What is the minimum logic gate delay that can be used in the design if all the gates operate at..
Explain the addressing mode for XCHG? - What is ADD r? - Explain the addressing mode of ADD. - What is ADC r?
A certain electronic power supply requires 25 W of input power. It can produce an output power of 20 W. What is its efficiency, and what is the power loss?
Consider a circular disk with radius R that has a uniformly distributed surface charge of Q.
For a particular junction for which nt=1.6, a capacitance Cj of 1.8 pF is measured for a reverse junction voltage of 2 V, and 0.2 pF for a voltage of 10 V. What are the corresponding values of Vo, Co and C1 at 0 V?
Assuming exact valued resistors what output voltage (measure to ground) and equivalent output resistance result if the resistor used are not ideal but have a +-5% manufacturing tolerance what are the extreme output voltafes and resistances that ca..
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