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1) A capacitor has a charge of 0.002C when it is connected across a 100V battery, Find its capacitance.
2) A capacitor has a capacitance of 6.40uF. How much charge must be removed to lower the potential difference of its plate by 50.0V?
3) The plates of a parallel-plate capacitor have areas of 40cm2 and are separated by 0.2mm of waxed paper (K=2.2). Find its capacitance.
A three-phase round-rotor synchronous generator, rated 10kV, 50MVA, has armature resistance R of .01 per unit and synchronous reactance of Xd of 1.65 per unit. The machine operates on a 10-kV infinite-bus delivering 2000 A at 0.9 PF leading.
Fix the value KP > 0 selected in (b), and obtaina root locus plot with respect to Kω using Matlab. Can you find a valueKω > 0 for which the closed loop system is stable Discuss how you might modify your design based on your conclusions.
An inductance of 8 mH is combined in parallel with a capacitance of 1.5 µF. What is the characteristic frequency (Hz) (not radian frequency) of the combination
A stream of warm air with a dry-bulb temperature of 40°C and a wet-bulb temperature of 32°C is mixed adiabatically with a stream of saturated cool air at 18°C. The dry air mass flow rates of the warm and cool airstreams are 8 and 6 kg/s, respectiv..
a three-phase 60 hz transmission line has the following parameters r 0.25 ohmsmi x 1.0 ohmsmi and y 5.0usmi. the
A charged 100- picoFarad capacitor has initial voltage across it of 10 V. A 100 kohm resistor is suddenly connected across the capacitor (at t=0) to discharge it. What is the magnitude of the instantaneous current at 20 usec
Design a prototyping system of battery management systems with fully controllable bi-directional power electronic converters
for a motor rated Vrms=230v P=300w pf=0.75lagging,calculate the capacitance C needed to improve the power factor to unity assuem frequency =50Hz sketch current and voltage phasors.
Each pole of a 100kW, 250v flet-compound generator has a shunt field of 2000 turns and a series field of 7 turns. If the total shunt field resistance is 100 ohms
A series LC circuit has values of VL 6 V and VC 15 V. Determine the magnitude and phase angle of the voltage source.
A 20-MVA, 12.2 kV, 0.8-PF lagging , Y connected synchronous generator has a negligible resistance and syncronous reactance of 1.1 per unit. The generator is connected in parallel with a 60-Hz, 12.2-kV infinite bus that is capable of supplying or c..
In Voltaire's tale, Candide travels across the known world witnessing the horrific brutalities that humans commit against one another in the name of religion, power, or simple greed. Having witnessed and experienced this violence, which puts into dou..
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