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consider a p-type semiconductor at 300 k with nh 1022m3 and nanv 10-6a what is the band gapb how far above the
a certain p-type semiconductor has a band gap of 08 ev the acceptor levels being 003 ev above the valence band what is
consider a p-n junction at 290 k with epsilongap 11 ev the fermi level lies 02 ev from the valence and conduction band
consider each of the following intrinsic semiconductors at 300 k si ge gaas insba from the band gaps of table 231
consider a semiconductor at 295 k with epsilongap 11 ev it is intrinsic so that excitations involve the valence and
consider excitations from level epsiloni -4 ev with 1025 statesm3 to level epsilon j -25 ev with 1024 statesm3 in a
suppose that the fermi level is 050 ev equation 2315 below the conduction band in a certain semiconductor estimate the
consider a system of six distinguishable spin-12 particles each with magnetic moment micro list the various possible
in chapter 22 we saw that the debye temperature for a solid is typically several hundred kelvins there are as many
a using classical statistics show that for a temperature 002te kte epsilon1 - epsilon0 there will be less than one
in the above problem we found that the drift current due to either charge carrier can be approximated by jdrift en4
consider a p--n junction at 295 k with a drift current density of 6 times 10-4 am2 what is the current density through
1 for a certain system the first excited state lies 1 ev above the ground state is the system degenerate at room
1 consider a system of three distinguishable spin-1 particles each with magnetic moment micro what is the entropy of
in the quasistatic adiabatic expansion of a gas the entropy remains constant although more volume in position space
1 why is adiabatic demagnetization done adiabatically that is why is the sample removed from the helium bath first2 two
consider a system having 1024 spin-12 particles the z-component of the magnetic moment of each is plusmnmicrob microb
in a certain type of molecule electronic levels i and j are separated by 2 times 10-6 eva if the ratio of the numbers
a hollow alloy tube 4m long with external amp internal dia of 40 mm amp 25mm respectively was found to extend 48mm
an axially loaded 50-mm-by-75-mm steel bar has a shear stress of 138 mpa developed on a plane at an angle of 50deg with
determine the internal resisting torque in the shaft shown at a b and c show the free-body
determine the internal resisting torque in the shaft shown at a and b show the free-body diagrams assume that the shaft
1 calculate the maximum shear stress developed in a 3 1 2 -in- diameter circular solid steel shaft subjected to an
1 calculate the allowable torque that may be applied to a 5-in- diameter solid circular steel shaft if the allowable
a hollow circular steel shaft has a 100-mm outside diameter and a 75-mm inside diameter calculate the allowable torque