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A balanced, 3-phase, 3-wire, 60Hz, wye-connected source isserving a combination of balanced loads in various configurations.Measurement of the source line voltage indicates 480 voltsline-to-line. Measurement of the source line current indicates 23amps. When 8 KVAR of capacitance (3-phase) is added in parallel tothe other loads, the source voltage stays the same and the sourcecurrent changes to 18 amps. What is the total 3-phase original loadin watts and VARS?
a zener diode exhibits a constant voltage of 5.6 volts for currents greater than five times the knee current.Izk is specified to be 1 ma. the zener is to be used in the design of a shunt regulator fed from a 15 volts supply .
what is the probability of rolling at least one 6 in rolling six fair dice at one time. what is the probability of rolling at least two 6s in rolling 12 fair dice at one time.
a transmission line is characterized by an effective signal wave frontvelocity of Vw=c/3. calculate the time delay required in pico seconds for a signal to propagate end to end on a line that is 30cm long.
When all the heavy machinery is operational, the total electric current flowing into the factory is 5.7 amperes. The phase angle between the voltage and current waveforms is measured to be 4.0 radians. Find the real power dissipated by the factory..
aluminum has the FCC crystal structure. Its atomic weight is 26.98g/mole, and its density is 2.70g/cm3. Determine the atomic radius of a single aluminum atom.
Determine ideal impulse response using inverse discrete-time Fourier transform. An ideal low-pass filter is described in the frequency-domain by
the transformer is to be connected as an auto transformer to supply a load at 120 V from a 210 V source. What kVA load can be supplied without exceeding the current rating of the windings (assume an ideal transformer for this part)
steam is condensed on the outside of a heated exchanger tube by pressing air through the inside of the tube. the air enters at 1.2 bars, 20 degree c and a speed of 10 m/s. the air exits at 80 degree c. the steam enters 3 bars, 200 degree c
The bandwidth of interest is between 0.5 and 50 Hz and has peak amplitude of approximately +/-1 mV. -a. Design and draw a block diagram (not circuit) of the signal conditioning portions (everything before ADC) of your system.
A germanium wafer is doped with phosphurus Nd=10^15 cm^-3. Find the electrons and holes densities and the Fermi level at room temperature.
A 100 Hz electromagnetic wave is propagating down into the sea water with an electric field intensity of |E| = 1 V /m just beneath the sea surface. What is the time-average Poynting power density at a depth of 100 m
Three screws are drawn at random from a lot of 200 screws, 10 of which are deffective. Find the probibility thats the screws drawn will be nen defective in drawing a.) WITH replacement
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