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- 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 n1. Find the Miller indices for atomic plane A shown in Fig Q1(a). Z Fig. Q1(a) bQ. Devive the following equation of work function ef metal during themonic emission KT where = work funchion of metal %3D Boltzman Coactant Ta Temperature where m iis the mars of electam and E is Hhe Chaoge of cleckon.
- 5) Find an explicit relation for the chemical potential u of a 2DEG at a finite temperature.Check Your Understanding The vibrational frequency of the hydrogen iodide HI diatomic molecule is 6.691013Hz. (a) What is the force constant of the molecular bond between the hydrogen and the Iodine atoms? (b) What is the energy of the emitted photon when this molecule makes a transition between adjacent vibration energy levels?Check Your Understanding If a=3+4i , what is the product a* a?
- Q4. Calculate the values of electron and hole concentrations in cm³ at 300 K for intrinsic Ge, Si and GaAs, given: Quantity me/mo m/mo Eg (eV) mo e kB h Ge 0.55 0.31 0.66 9.1×10-³1 kg 1.6×10-¹9 C 1.38×10-23 J/K 1.054×10-34 Js Si 1.10 0.56 1.12 Ge 0.068 0.500 1.43H.w/ find the 0/p of PCM for i/p signal x(t) = 3.5sin(2000nt) the sampling frequency 5 kHz for 0How meny of So ev are scattered from the D plane of Mgo crystal ot an Nm 's the distonce between atoms if electrons, with energy First af the electrons, How angle of 55.6? B) 100 eu energy many degrees order scotering ongles ar the1 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 theEg Q.1/ Prove that: ni = NcNy e 2KT Using Eg = Ec– Ev Solution: n .p = ni²7-13. For € = 2, (a) what is the minimum value of L + L3? (b) What is the maximum value of L + L3? (c) What is L + L for € = 2 and m= 1? Can either L, or L, be deter- mined from this? (d) What is the minimum value of n that this state can have?SEE MORE QUESTIONS