Physics for Scientists & Engineers, Volume 2 (Chapters 21-35)
5th Edition
ISBN: 9780134378046
Author: GIANCOLI, Douglas
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 40, Problem 37P
(a)
To determine
Find the density of free electron of aluminum.
(b)
To determine
Find the number of valence electron in aluminum.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
(c) Calculate the Fermi energy of silver from the
data given below:
atom.
Density of Silver = 10.5 gm/cm³
atomic weight = 108
h = 6.62×10-34 Joule - sec
m = 9.1×10-³1 Kg.
Avogadro's number =6.02×10-21 atoms/gm-
(b) Copper crystallises as FCC (face centred cubic). Given that the atomic radius and density of
a given copper sample are 1.28 x 1010 m and 8.98 x 10' kg/m' respectively, carry out the following:
Calculate the mass of the copper sample. T'ake Avogadro's number, NA = 6.023 x 1023
atoms/mole.
(i)
(ii) If the interatomic planar spacing, d, in the sample above is 2.96 x 1010 m, determine the angle
at which the first Bragg reflection will occur from the (111) plane if x-radiation of wavelength
1.52 x 10-10 m is used for the analysis.
(c) Give two uses of pure copper and two commercial applications of copper alloys.
(i) At room temperature a pure crystal has electron and hole concentration n=p=n,-1.5 10 cm, and electron and hole
drift mobilities, Po=1350 cm'Ns, P 450 cm2/Vs. Calculate the Hall coefficient and Hall voltage.
Chapter 40 Solutions
Physics for Scientists & Engineers, Volume 2 (Chapters 21-35)
Ch. 40 - What type of bond would you expect for (a) the N2...Ch. 40 - Describe how the molecule CaCl2 could be formed.Ch. 40 - Does the H2 molecule have a permanent dipole...Ch. 40 - Although the molecule H3 is not stable, the ion...Ch. 40 - The energy of a molecule can be divided into four...Ch. 40 - Would you expect the molecule H2+ to be stable? If...Ch. 40 - Explain why the carbon atom (Z = 6) usually forms...Ch. 40 - Prob. 1PCh. 40 - (II) The measured binding energy of KCl is 4.43eV....Ch. 40 - (I) Show that the quantity 2/I has units of...
Ch. 40 - Prob. 9PCh. 40 - Prob. 23PCh. 40 - Prob. 24PCh. 40 - Prob. 25PCh. 40 - Prob. 26PCh. 40 - Prob. 27PCh. 40 - Prob. 28PCh. 40 - Prob. 30PCh. 40 - Prob. 31PCh. 40 - Prob. 32PCh. 40 - Prob. 33PCh. 40 - Prob. 34PCh. 40 - Prob. 35PCh. 40 - Prob. 36PCh. 40 - Prob. 37PCh. 40 - Prob. 38PCh. 40 - Prob. 39PCh. 40 - Prob. 40PCh. 40 - Prob. 41PCh. 40 - Prob. 42PCh. 40 - Prob. 43PCh. 40 - Prob. 44P
Knowledge Booster
Similar questions
- The measured density of a CsCl crystal is 3.988 g/cm3. What is the equilibrium separate distance of Cs+ and Cl- ions?arrow_forward2) (i) The Fermi Silver is temperature we 14% in which Fermi Energy of the 4.4 ev. At what (au expect a probability that electrons have an silver Joom density is 2% energy? (11) Consider silicon sample at temperature with hole 2x (012 cm-3 be energy a above the a) Estimate the electron density b) determine the acceptor density Concentration if the donor density is 1012arrow_forward(i) The total electrical resistivity of metals is the sum of the contributions from thermal vibrations, impurities and plastic deformation; (ii) the resistivity rises linearly with temperature above -200 degree Celsius; (iii) increasing the concentration of impurity results in an enhancement of impurity; (iv) plastic deformation also raises the electrical resistivity due to the increased numbers of electron-scattering dislocations. Which of the above statements is false? D. (iv) A. (i) C. (iii) E. All of the above B. (ii) Other:arrow_forward
- (b) (i) Explain how doping may be used to create extrinsic n-type and p-type semiconductors. (ii) Describe the structure and operation of a p-n junction as a diode rectifier.arrow_forward(c) A common emitter BJT circuit and its voltage transfer curve is shown in Fig. 1(c) respectively. Assume the transistor common-emitter current gain, ß = 50, VBE (on) = 0.7 V, Rg = 100 kn and Rc = 1 k2. (i) Determine the input voltage at the point x. (ii) Calculate the base current, Ig and collector current, Ic at the point x. +Vcc Vo(V) Rc 5- Vo RB V, oww -RAR- IB VBE 0.5 V,(V) 15 Fig. 1(c) -END OF QUESTION-arrow_forward.) The ratio of the effective density of states in the conduction band at E. + 2k,T to the effective density of states in the valence band at E, - k„T is 3 mn (A) m 3/2 (B) 3/2 (2". (C) (D) 到arrow_forward
- 2) For a KCl crystal (that you came across in Ch. 1) the unit cell parameter is 6.3Å and the Young's modulus of elasticity along (100] direction is 29.67 GPa (or 29.67 x10° N/m²). (a) Calculate the maximum value of the frequency of the optical branch and the corresponding wavelength. (b) Estimate the forbidden frequency band gap. The atomic masses of the K and Cl atoms are 39 amu and 37 amu, respectively (1 amu 1.67x10-27 kg) = (Hint: You may need to use the Young modulus of elasticity to find the spring constant).arrow_forward(4) Find the Fermi energy of lithium Er, the Fermi temperature TF, and the speed of wF of the fastest free electrons.arrow_forwardAssume a temperature of 300 K and fi nd the wavelength of the photon necessary to cause an electron to jump from the valence to the conduction band in (a) germanium, (b) silicon, (c) InAs, and (d) ZnS.arrow_forward
- (3) In an n-tpye semiconductor for the given linear variation doping concentration of Na (x) = 1016 – 1019 x (cm3) (a) Derive the induced field E(x) and calculate E max at T = 37 °C. (b) Calculate the potential difference between x = 0 and x =2 um at T = 37 °C. Note: E(x) = - [dT/Na(x)][dNa(x)/dx], T= kT/earrow_forwardAn NPN transistor is fabricated such that the collector has a uniform doping of 5 x 1015arrow_forwardand 12pF at (ii) A PN Junction diode has NA = 107 cm, Np = 1015 cm, A = 10 cm, Dp = 10 cm-/s, Dn = 36 cm2/s, and carrier life time in the n and p region be 1us. Determine the %3D ideal diode current for Va =0.1V.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
University Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStax
Modern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage Learning
University Physics Volume 3
Physics
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:OpenStax
Modern Physics
Physics
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Cengage Learning