d. Calculate the probability of an electron occupying an energy state that is 0.2 eV above the electrochemical potential for a material at 110 oK.
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d. Calculate the probability of an electron occupying an energy state that is 0.2 eV above the
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- If the concentration of free electrons in a metal object equals (1×1029 electrons/m³). Determine the temperature at which two percent probability that an energy level of (7.73eV) is empty. 330.15k 340.22k O 334.15k O 337.25k 335.15kThe cell membrane has ion channels that can exist in two states, open or closed. When they are open, they let Na+ ions through. The energy of the open state is 4*10^-20 J. higher than the state of the closed channel. a. What proportion of the ion channels are open at a temperature of 20 C? b. How high should the temperature be so that 75% of the channels are open? Don't use Chat GPT otherwise I will report from bartleby.3Ex: find the relaxation time t for electron if the mobility of electron is 1400cm? V-I S-1 and the m /mo-0.26 ? 14 00- S als kutio n
- The maximum wavelength of light that a certain silicon photocell can detect 1.11μm1.11μm.a. What is the energy gap (in electron volts) between the valence and conduction bands for this photocell?b. Explain why pure silicon is opaque.A silicon layer measuring 1 micrometers thick contains an electron. if a 1D quantum well with infinite walls can accurately describe the semiconductor. Assume that the silicon's electron's effective mass is 0.26 x. (rest mass of electron) a. Determine the material's three lowest energy levels. b. What is the corresponding electron velocity at the lowest energy level if the energy can be understood as the kinetic energy of the electron?1. For a one-dimensional fermion gas, calculate the density of energy levels g(e).
- *42. a. Determine VL, IL, Iz, and Ir for the network of Fig. 2.186 if R1 = 180 N. b. Repeat part (a) if R1 = 470 N. c. Determine the value of R1 that will establish maximum power conditions for the Zener diode. d. Determine the minimum value of R1 to ensure that the Zener diode is in the “on" state. Rs 220 2 IR Vz = 10 V RL VL 20 V Pz, = 400 mW Zmax FIG. 2.186 Problem 42.5) Find an explicit relation for the chemical potential u of a 2DEG at a finite temperature.1 A system Consists of 6000 particles 6000 particles j A system distribute d Consists of energy states in three states. energy of the thre EI=0, Ez= 2a and Es= 2x, All the The are Ban@ three Same intrinsid certain instant there particles in the lower level states have the probability g. AŁ are 2000 2500 in the middle level and in the level. Compone the 500 the uper probablities with obtained by the toansfer particle from the Jower Jelative distribution of to the one middle level and middle to the one particle upper original distribution. from the level and the
- : A uniform piece of n-type of silicon that is lum long senses a voltage of 1 v. Determine the velocity of the electrons. Use p1350 cm/V.sesQ3.B/ The velocity of electrons will change when they collide with ions, therefore, the probability per unit time is: 1/T 1/2T 2t Other: Q3.C/ The breakdown voltage can be decreased by increasing the: Your answer Q3. D/ The junction is in thermal equilibrium when theQ3: In a P-type germanium, n₁ = 2.1 x 10¹ m ³density of boran 4.5 x 1023 atoms /m³. The electron and hole mobility are 0.4 and 0.2 m²v's respectively. What is its conductivity before and after addition of boron atoms.