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define a one-dimensional potential well having energies U as a function of position x as follows: U=infinity for x= -1nm to x=0; U=0 eV for x=0 to x=5nm; U=10 eV for x=5nm to x=7nm; U=0 for x>7nm and x< -1nm. We plut an electron with energy E=5eV between x=0 and x=5nm.
a) Write the schrodinger wave equation for each region in the figureb) Write the expressions for the general form of the wave function in each regionc)what are the boundary conditions and whyd) what does the graph of the wave function look like for the lowest energy levele) what is the most likely place to find a particle in this energy state?
The acceptor concentration in a particular junction is 10^6/cm^3 and the donor concentration is 10^15/cm^3. Assume ni=1.5*10^10/cm^3. Find the junction built-in voltage.
Express the diode current equation. A) Define all the diode parameters and draw the I-V characteristics. (Assume non-ideal diode) B) If IF=10 mA, Is=10-15A, VT=25mV, Calculate the voltage drop across the diode.
An unknown semiconductor has a bandgap of 1.1eV and Nc = Nv. It is doped with 10^15 cm-3 donors where the donors fully ionized. Given that EF is 0.25 eV below Ec, calculate the concentration of electrons and holes in the semiconductor at 300 K and..
Write an arduino code that reads the temperature from a thermistor. This code must read a set temperature from the serial monitor and if the temperature from the thermistor is higher than the set temperature then a fan and led will turn on.
Calculate the S/N ratio for a receiver output of 4 V signal and 0.48 V noise both as a ratio and in decibel form. (69.44, 18.42dB)
Convert the first-order Butterworth low-pass prototype, H(z) = 1 / s+1 to a digital IIR filter using impulse invariant method when sampling frequency is 1 Hz.
A wattmeter connected into the line gives a reading of 2765W. If a capacitor have a reactance of 30ohms is connected in parallel with the motor. Calculate the total reactive power absorbed by the capacitor and motor.
Define X and Y to be two discrete random variables whose joint probability mass function is given as follows: P(X = m, Y = n) = e^7*4^m*3^n?m / m!(n m)! , for m = 0, 1, . . . , n and n = 0, 1, 2, . . . , while P(X = m, Y = n) = 0
When a square wave with a fundamental frequency of 2khz and amplitude 5v and comprised of up to five odd harmonic (each successive odd harmonic having half the amplitude of its predecessor) is passed though a standard telephone line of bandwidth o..
Locate and specify an appropriate sensor if it is to operate at 120 vac as an input to a PLC. Create the ladder diagram program to accomplish the specified control.
Given the following next state and output equations for a synchronous sequential circuit:a. Construct the transition table (state table) for the circuit showing present states, next states and outputs. b. Draw a state graph for the circuit.
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
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