Chapter 5 solutions
5.2 Intrinsic Ge Using the values of the density of states effective masses me* and mh* in Table
5.1, calculate the intrinsic concentration in Ge. What is ni if you use Nc and Nv from Table 5.1? Calculate the intrinsic resistivity
Chapter 4 Solutions to Assigned Problems
4.4
The one s and three p orbitals hybridize to form 4 hyb orbitals. In Sb there are 5 valence electrons. One hyb has two paired electrons and 3 hyb has 1 electron as shown in Figure 4Q4-1. In In there are 3
1.5 Madelung constant If we were to examine the NaCl crystal in three dimensions, we would find
that each Na+ ion has 6 Cl- ions as nearest neighbors at a distance r 12 Na+ ions as second nearest neighbors at a distance r 2 8 Cl- ions as third neares
Chapter 2 solutions
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2.2
a. Apply the equation for temperature dependence of resistivity, (T) = o[1 + o(T-To)]. We have the temperature coefficient of resistivity, o, at To where To is the reference temperature. The two given reference temperatures
Chapter 3 Solutions
3.1
a. Given: power P = 1000 W and frequency = 700 103 s-1. Then the photon energy is Eph = h = (6.626 10-34 J s)(700 103 s-1) Eph = 4.638 10-28 J/photon or 2.895 10-9 eV/photon The number of photons emitted from the anten