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Consider and electron in a cubical crystal of a conducting material. Such an electron is free to move throughout the volume ofthe crystal, but can't escape to the outside.It is trapped in athree dimensional infinite well.The electron can move in three dimensions.
a.) Set up and solve Schrodinger's wave equation for all regionsmake sure to apply postulates.
b.) Find the wave solutions (Psi(x,y,z) for all regions.
c.) Calculate the energies of the lowest three distinct states foran electron moving in a cubical crystal of edge length L=.5um.
One reason that the maximum electric field is important is because of the possibility of impact ionization, which may be desired or undesired in a particular application. The process of impact ionization is dependent on the electric field
Design a 4-bit asynchronous down counter with truncated sequence that counts down a truncated sequence from 1111 to 0101. On reaching the count value 0100, the counter must preset to 1111.
A THREE PHASE, Y-CONNECTED, 60Hz, TWO POLES SYNCHRONOUS MACHINE HAS A STATOR WITH 5000 TURNS OF WIRE PER PHASE.WHAT ROTOR FLUX WOULD BE REQUIRED TO PRODUCE A TERMINAL (LINE-TO-LINE) VOLTAGE OF 13.2kV
Design a logic circuit to form part of automobile safety arrangement, providing a warning light, consisting of an LED, if (a) whenever the door is open or (b) when the seat belt is not buckled and the key is in the ignition.
Consider the signal x(t)=e^-at where a is a positive number. Determine the Fourier Transform of and plot both the magnitude and the phase angle as a function of the frequency.
Design a 4-bit circuit for 2s-complement, base on the formula below, using only inverters, 2 input AND gates and 2 input OR gates. Design your circuit to be as fast as possible. What is the worst-case propagation delay for this circuit
Determine and compare the intrinsic impedance, attenuation constant, and skin depth of copper [σcu =5.80 × 10^7 (S/m)], silver[σag=6.15 × 10^7 (S/m)], and brass[σbr=1.59 × 10^7 (S/m)]
(a) find the value of a and K so that the relative damping ratio of the system is 0.5 and the rise time step response is approximately 1 s. (b) with the values of a and k found in previous question above , find the steady state of the system .
Solve y"+y'-2y=2x^2, y(0) = 0, y'(0) = 1 following these steps a) find homogeneous solution, b) find nonhomogeneous solution with method of undetermined coefficient with constants evaluated,
A capacitor of value C=10 uF(microfarads: where 1 uF=10^-6 F) has a voltage of 2 volts across it. Calculate the amount of charge Q,in coulombs,on each plate.
The transfer function of a causal LTI system is H(s)= 1/(s^2+4) Suppose we would like the output y (t) to be identical to zero for t = 0. If we let x (t) =δ(t), what would the initial conditions be equal to
A three-phase Wye connected generator has Egline = 12470 V, Rp = 1 ?, Xs = 11 ?, and a full load line current of 600 A. Calculate Vterminal at a load power factor of 0.85.
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