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A 3-phase,4pole star connected turbo alternater has a cylindrical rotar. The reactance and resistance perphase of winding is 2.5 ohms and 0.15 ohms.The alternater has terminal potential difference of 6600V when delivering a current of250Amps. calculate a) The generated EMF at 0.6 PF laagging b)the regulation at 0.6 PFleading
Calculate the amount of work done if the process is considered to be polytropic. Assume the temperature to be 273K and the value of k for the process to be 1.4. All losses are neglected.
it is found experimentally that electric field in certain region of earth's atmosphere is downward. at an altitude of 300m the field is 58N per C and at altitude of 200m it is 110N per C. Find the net amount of charge contained in a cube 100m on e..
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.
Generate an analogous diagram for a closed-loop controlsystem to maintain the water level in a tank that has a singleinlet valve (that can be controlled )and an unknown leak. Anexample of a closed -loop system such as this is the tank on a toilet.
A one-dimensional infinite potential well with a width of 12 Ao contains an electron. (a) Calculate the first two energy levels that the electron may occupy. (b) If an electron drops from the second energy level to the first, what is the wavelengt..
A coil with impedence 8+j6Ω is connected in series with a capacitive reactance X. The series combination is connected in parallel with a resistor R. given that the equivalent impedence of the resulting circuit is 5/_0'Ω, find the value of R and X.
design a 4-bit serial adder (VHDL code or schematic) which includes two shift registers and a single full-adder to perform the following functionality with proper timing controls. Two 4-bit inputs A and B will be set by eight switches on your Xili..
Write the 9S12DP256 assembly language instructions below a programmer could use to copy the 3rd variable from a 10-byte array into Accumulator B.
Find the electric field of a long line charge at a radial distance where the potential is 12V higher than at a radial distance \(r_{1}=1m\) where the magnitude of the electric field is 5V/m .
The quality control department at Alexander fasteners measured the length of 100 bolts randomly selected from a specified order.The mean length was found to be 9.75 cm, and the standard deviationwas 0.01 cm.
Determine the normalized impedance at λ/8 from the load if (a) its normalized impedance is 2 +j, (b) its normalized admittance is 0.2 - j0.5, (c) the reflection coefficient at load is0.3 + j0.4.
In a certain crystalline material the vacancy concentration at 25*C is one-fourth that at 80*C. At what temperature would the vacancy concentration be 3 times that at 80*C 2. Suppose one attempts to add a small amount of Ni to Cu in an effort to cr..
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