Homework Answers
Ive solved this problem with work shown at the bottom, but not sure why it's still...
Ive solved this problem with work shown at the bottom, but not
sure why it's still wrong. I had a previous chegger help but that
answer still didnt solve the problem, can you please show all work
to help me to understand whats equations to use to solve, thanks in
advance.
An electron is incident on an energy barrier that is 1.50 nm in width with an energy that is 0.0515 eV less than the height of the barrier. How...
4. An electron having total energy E 4.50 eV approaches a rectangular Energy energy barrier with...
4. An electron having total energy E 4.50 eV approaches a rectangular Energy energy barrier with U= 5.00 eV and L = 950 pm as shown. Classically, the electron cannot pass through the barrier because E < U. However, quantum mechanically the probability of tunneling is not zero. a) Calculate this probability, which is the transmission coefficient. b) By how much would the width L of the potential barrier have to change for the chance of an incident 4.50-eV electron...
plz hlp Tunneling An electron of energy E = 2 eV is incident on a barrier...
plz hlp
Tunneling An electron of energy E = 2 eV is incident on a barrier of width L = 0.61 nm and height Vo-3 eV as shown in the figure below. (The figure is not drawn to scale.) 1) What is the probability that the electron will pass through the barrier? The transmission probability is 0 SubmitHelp 2) Lets understand the influence of the exponential dependence. If the barrier height were decreased to 2.8 eV (this corresponds to only...
Electrons with energies 1 eV and 2 eV are incident on a barrier of height 5...
Electrons with energies 1 eV and 2 eV are incident on a barrier of height 5 eV and 0.5 nm wide. Find their respective transmission probabilities. How are these affected if the barrier is doubled in width?
PLEASE SHOW ALL LOGICAL STEPS TO SOLUTION FOR PROPER CREDIT! 1.An electron having an energy of...
PLEASE SHOW ALL LOGICAL STEPS TO SOLUTION FOR PROPER CREDIT! 1.An electron having an energy of 6 eV is incident on a potentiial barrier of thickness 0.15 nm and height 10ev a) Find the probability of transmission through the barrier. b) If a current of 8x10 such electrons per second are incident on the barrier, how many will get through each second? How many reflected back? c) What is the transmission current in Amperes( Coul/sec)? 10 ev 6ev
show work thanks. A 10 eV electron (an electron with a kinetic energy of 10 eV)...
show work thanks.
A 10 eV electron (an electron with a kinetic energy of 10 eV) is incident on a potential-energy barrier that has a height equal to 13 eV and a width equal to 1.0 nm. T = e^-2alpha a alpha > > 1 Use the above equation (35-29) to calculate the order of magnitude of the probability that the electron will tunnel through the barrier. 10 _________ Repeat your calculation for a width of 0.10 nm. 10 _________
(III) Quantum Tunneling Consider an electron in 1D in presence of a potential barrier of width...
(III) Quantum Tunneling Consider an electron in 1D in presence of a potential barrier of width L represented by a step function ſo I<0 or 1>L V U. r>0 and 2<L The total wavefunction is subject to the time-independent Schrödinger equation = EV (2) 2m ar2 +V where E is the energy of the quantum particle in question and m is the mass of the quantum particle. A The total wavefunction of a free particle that enters the barrier from...
An electron with an energy of E=9.8eV is incident upon a square potential barrier of height U=13.8eV with a width of L=0.13nm. What is the probability of reflection (reflection coefficient)? Calculate...
An electron with an energy of E=9.8eV is incident upon a square potential barrier of height U=13.8eV with a width of L=0.13nm. What is the probability of reflection (reflection coefficient)? Calculate your answer using two decimal places. Mass of the electron is 0.511 MeV/c2 Please also note that ħc=197 eV.nm
1. Consider a p-n junction diode with doping concentrations: NA6.5x1015 cm3 and ND 107 cm3 in...
1. Consider a p-n junction diode with doping concentrations: NA6.5x1015 cm3 and ND 107 cm3 in the p- and n-sides, respectively. (a) Calculate the free electron and hole concentrations in both p- and n-sides' neutral regions. (b) Find the barrier height and the built-in voltage. (c) Sketch the energy band diagram of the complete p-n junction. Mark all energy levels including the barrier height and show the energy level values. (d) Calculate the total depletion width under zero bias. (e)...
problems 7 & 8 Problem 7: A particle confined in a rigid one-dimensional box of length...
problems 7 & 8
Problem 7: A particle confined in a rigid one-dimensional box of length 1 x 10-14m has an energy level ER = 32 MeV and an adjacent energy level En+1 = 50 MeV. 1 MeV = 1 x 106 eV (a) Determine the values of n and n + 1. Answer: n = 4 and n+1 = 5. (b) What is the wavelength of a photon emitted in the n+1 to n transition? Answer: X = 6.9...
Ive solved this problem with work shown at the bottom, but not
sure why it's still wrong. I had a previous chegger help but that
answer still didnt solve the problem, can you please show all work
to help me to understand whats equations to use to solve, thanks in
advance.
An electron is incident on an energy barrier that is 1.50 nm in width with an energy that is 0.0515 eV less than the height of the barrier. How...
4. An electron having total energy E 4.50 eV approaches a rectangular Energy energy barrier with U= 5.00 eV and L = 950 pm as shown. Classically, the electron cannot pass through the barrier because E < U. However, quantum mechanically the probability of tunneling is not zero. a) Calculate this probability, which is the transmission coefficient. b) By how much would the width L of the potential barrier have to change for the chance of an incident 4.50-eV electron...
plz hlp
Tunneling An electron of energy E = 2 eV is incident on a barrier of width L = 0.61 nm and height Vo-3 eV as shown in the figure below. (The figure is not drawn to scale.) 1) What is the probability that the electron will pass through the barrier? The transmission probability is 0 SubmitHelp 2) Lets understand the influence of the exponential dependence. If the barrier height were decreased to 2.8 eV (this corresponds to only...
PLEASE SHOW ALL LOGICAL STEPS TO SOLUTION FOR PROPER CREDIT! 1.An electron having an energy of 6 eV is incident on a potentiial barrier of thickness 0.15 nm and height 10ev a) Find the probability of transmission through the barrier. b) If a current of 8x10 such electrons per second are incident on the barrier, how many will get through each second? How many reflected back? c) What is the transmission current in Amperes( Coul/sec)? 10 ev 6ev
show work thanks.
A 10 eV electron (an electron with a kinetic energy of 10 eV) is incident on a potential-energy barrier that has a height equal to 13 eV and a width equal to 1.0 nm. T = e^-2alpha a alpha > > 1 Use the above equation (35-29) to calculate the order of magnitude of the probability that the electron will tunnel through the barrier. 10 _________ Repeat your calculation for a width of 0.10 nm. 10 _________
(III) Quantum Tunneling Consider an electron in 1D in presence of a potential barrier of width L represented by a step function ſo I<0 or 1>L V U. r>0 and 2<L The total wavefunction is subject to the time-independent Schrödinger equation = EV (2) 2m ar2 +V where E is the energy of the quantum particle in question and m is the mass of the quantum particle. A The total wavefunction of a free particle that enters the barrier from...
1. Consider a p-n junction diode with doping concentrations: NA6.5x1015 cm3 and ND 107 cm3 in the p- and n-sides, respectively. (a) Calculate the free electron and hole concentrations in both p- and n-sides' neutral regions. (b) Find the barrier height and the built-in voltage. (c) Sketch the energy band diagram of the complete p-n junction. Mark all energy levels including the barrier height and show the energy level values. (d) Calculate the total depletion width under zero bias. (e)...
problems 7 & 8
Problem 7: A particle confined in a rigid one-dimensional box of length 1 x 10-14m has an energy level ER = 32 MeV and an adjacent energy level En+1 = 50 MeV. 1 MeV = 1 x 106 eV (a) Determine the values of n and n + 1. Answer: n = 4 and n+1 = 5. (b) What is the wavelength of a photon emitted in the n+1 to n transition? Answer: X = 6.9...
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