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State the main reasons for the use of excitation control usingfeedback of terminal voltage for a turbo generator supplying powerto a complex power system.
A silicon wafer is uniformly doped with 5.5 X 10^16 phosphorus atoms/cm^3 and 4.5 X 10^16 boron atoms/cm^3. a) Find the electron and hole concentrations, the electrons andhole mobilities, and the resistivity of this silicon material at300K.
A boron diffusion into a 1 -ohm-cm n type wafer results in a Gaussian profile with a surface concentration of 5 x 10^18/cm^3 and a junction depth of 4um. a)how long did the diffusion take if the diffusion temperature was 1100 degrees C
A majority circuit is a circuit with an odd number of inputs whose output is a 1 if and only if a majority of its inputs are 1. (a) Find the truth table for a three-input majority circuit. (b) From the truth table,find the Boolean equation for the ci..
The DC shunt motor is running at full load with a supply voltage of 440 V and a supply current of 70 A. The rotation speed in full load is 1000 rpm, the field resistance is 200 Ohm and the armature resistance is 0.2 Ohm.
A container with a plunger compresses one pound mole of an ideal gas from 1 atmospheres pressure to 10 atmospheres. Calculate the amount of work done if the process is considered to be polytropic.
Construct a block diagram and an ASMD chart for digital system that counts the number of people in a room. The one door through whichpeople enter the room has photocell that changes a signal x from 1to 0 when the light is interrupted.
Suppose that without a 1k-ohm load an amplifier's output voltage is 5Vpp but when the 1k-ohm load is attached, it drops to 3Vpp. What is the output impedance of the amplifier
1- for the linear system : Sak y(n-k) = S br x(n-r) , (series a are from k=0 to n ) & ( series b from r=0 to m) a- find H(z) b- does this equation uniquely specify the unit sample response of l.s.i system c- choose, stable and casual system ,discuss ..
Asssume that you are to design a synchronous TDM carrier to support 30 voice channels using 6-bit samples and structure similar toT1.Determine required bit rate
A tooling designer is designing a jig that will insert pins into the flip-up handles of a coffeemaker. The bin to hold the pins should hold enough pins for 3 hours' work before reloading. The engineering estimate for the rate of inserting the pins..
If the counter is used to hold the number of elapsed seconds since an event hasoccurred, how much time can be represented before the counter overflows and the result is erroneous.
A stream of air at 80 °F and 1.2 atm absolute flowing at a rate of 200 ft3/h is blown through ducts that pass through the interior of a large industrial motor. The air emerges at 500 °F. Calculate the rate at which the air is removing heat generat..
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