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A long hallway has three doors, one at each end and one in the middle. A switch is located at each door to operate the incandescent lights along the hallway. Label the switches A, B, and C. Design a logic network to control the lights.
Doping is Nd=1x10^20/cm^3 on the n-side, and Na=1x10^18/cm^3 on the p-side. Find the equilibrium n and p values in the neutral regions on both sides as well as total depletion thickness in micrometer and peak electric field.
consider a running motor with Z = 6 + j7 ohm A) calculate the line crurrent if the motor is operated at 120 VAC RMS B) calculate the required paralell capacitor value to reduce the line current to a minimum
50 kmol per hour of air is compressed from p1 = 1.2 bar to P2 = 6.0 bar in a steady-flow compressor. Delivered mechanical power is 98.8KW. Temperature and velocities are: T1= 300K T2= 520K u1= 10m s^-1 u2= 3.5m s^-1
an electric field of 3.10times105 is desired between two parallel plates each of area 36.0 and separated by 0.620
Give a counterexample to show that the following statement is false: "When the magnetic field through a loop changes, currents run in the loop in such a way as to make a new magnetic field in the opposite direction to the original one."
If the overall impulse response of a data communication system is araised cosine pulse with 100% excess bandwidth (i.e. roll-offfactor of 1), then find the height and the width of the eye pattern.
When a color palette is used to reduce its storage requirements, what is the maximum number of rows in the LUT to keep the compressed image size (LUT + index values for each pixel) smaller than the original image size
Why is it that fuses and breakers do not prevent transformer and cable overloads? What function do fuses and breakers perform?
What is meant by the excitation current of an induction motor? Draw its phasor diagram with applied voltages as the reference phasor showing its components. Which is the larger component and why?
Determine the local x displacements at each end of the bars. Let E = 12 106 psi, A = 0:5 in2, and L = 60 in. for each element.
The network voltage is 27 kV. The generator operates with an induced voltage, which is twice the rated line-to-neutral voltage. Calculate the power angle if the network receives an inductive reactive power of 50 MVA.
Assume that the motor is operating in the range for which torque is proportional to slip and write an equation for motor torque in terms of slip when operating at rated voltage. Then modify the equation for operation from a 220-V-rms source.
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