Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
expand_more
expand_more
format_list_bulleted
Question
Chapter 38, Problem 33P
To determine
The pressure of free electrons.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The intrinsic carrier concentration of silicon (Si) is expressed as
- E
n₁=5.2×10¹5T¹.5exp-
i
electrons at 30°C.
n =
cm
-3
g
2kT
cm
-3
where Eg = 1.12 eV. Determine the density of
Round your answer to 0 decimal places.
What is the root mean square velocity, vrms, for Helium atom (He) at 66oC?
Hint: How many amu does an He atom contain?
1 amu = 1.67 x 10-27 kg
Boltzman's Constant, k = 1.38 x 10-23 J/K
Give your answer in m/s to 4 significant figures (NO DECIMALS)
Compute the average kinetic energy of a gas molecule at 27C. Express results in electron volts. If the gas ishydrogen, what is the order of magnitude of the velocity of the molecules at 27C.
Chapter 38 Solutions
Physics for Scientists and Engineers
Ch. 38 - Prob. 1PCh. 38 - Prob. 2PCh. 38 - Prob. 3PCh. 38 - Prob. 4PCh. 38 - Prob. 5PCh. 38 - Prob. 6PCh. 38 - Prob. 7PCh. 38 - Prob. 8PCh. 38 - Prob. 9PCh. 38 - Prob. 10P
Ch. 38 - Prob. 11PCh. 38 - Prob. 12PCh. 38 - Prob. 13PCh. 38 - Prob. 14PCh. 38 - Prob. 15PCh. 38 - Prob. 16PCh. 38 - Prob. 17PCh. 38 - Prob. 18PCh. 38 - Prob. 19PCh. 38 - Prob. 20PCh. 38 - Prob. 21PCh. 38 - Prob. 22PCh. 38 - Prob. 23PCh. 38 - Prob. 24PCh. 38 - Prob. 25PCh. 38 - Prob. 26PCh. 38 - Prob. 27PCh. 38 - Prob. 28PCh. 38 - Prob. 29PCh. 38 - Prob. 30PCh. 38 - Prob. 31PCh. 38 - Prob. 32PCh. 38 - Prob. 33PCh. 38 - Prob. 34PCh. 38 - Prob. 35PCh. 38 - Prob. 36PCh. 38 - Prob. 37PCh. 38 - Prob. 38PCh. 38 - Prob. 39PCh. 38 - Prob. 40PCh. 38 - Prob. 41PCh. 38 - Prob. 42PCh. 38 - Prob. 43PCh. 38 - Prob. 44PCh. 38 - Prob. 45PCh. 38 - Prob. 46PCh. 38 - Prob. 47PCh. 38 - Prob. 48PCh. 38 - Prob. 49PCh. 38 - Prob. 50PCh. 38 - Prob. 51PCh. 38 - Prob. 52PCh. 38 - Prob. 53PCh. 38 - Prob. 54PCh. 38 - Prob. 55PCh. 38 - Prob. 56PCh. 38 - Prob. 57PCh. 38 - Prob. 58PCh. 38 - Prob. 59PCh. 38 - Prob. 60PCh. 38 - Prob. 61PCh. 38 - Prob. 62PCh. 38 - Prob. 63PCh. 38 - Prob. 64PCh. 38 - Prob. 65PCh. 38 - Prob. 66PCh. 38 - Prob. 67PCh. 38 - Prob. 68PCh. 38 - Prob. 69PCh. 38 - Prob. 70PCh. 38 - Prob. 71PCh. 38 - Prob. 72PCh. 38 - Prob. 73PCh. 38 - Prob. 74PCh. 38 - Prob. 75PCh. 38 - Prob. 76P
Knowledge Booster
Similar questions
- Germanium doped with 1024 m Al atoms is a semi-conductor at room temperature and each Al atom creates a charge carrier. Calculate the electrical conductivity of this material at room temperature, considering that the electron and hole mobilities are respectively 0.1 and 0.05 m/V.s.arrow_forward6.29. Find the number of conduction electrons in a l-meter cube of copper if o= 58 MS/m and u- 3.2 x 10m/V .s. On the average, how many clectrons is this per atom? The atomic weight is 63.54 and the density is 8.96 x 10 kg/m'. Ans. 1.13 x 10, 1.33arrow_forwardPressure and bulk modulus of an electron gas. (a) Derive a relation connecting the pressure and volume of an electron gas at 0 K. Hint: Use the result of Problem 1 and the relation between er and electron concentration. The result may be writ- ten as p =(U/V). (b) Show that the bulk modulus B = –V(dp/əV) of an electron gas at 0 K is B = 5p/3 = 10U/9V. (c) Estimate for potassium, using Table 1, the value of the electron gas contribution to B.arrow_forward
- Electronics Physics -HW2 QI. In a P-type germanium, ni = 2×10" electrons/m and the density of boron 4x1023 atoms/m'. The electrons and holes mobility are (0.4 and 0.2 m/ V. s) respectively. What is its conductivity before and after addition of boron atoms? Note: For after addition of boron atoms you need to compare the actual and approximate conductivity ملاحظة: بعد اضافة ذرات البورون يكون حساب التوصيليه بالاستخدام التقريب وبدون استخدام التقريب والمقارنة بين النتائجarrow_forwardThe relation between resistance R and temperature T for a thermistor (a device that measures temperature) closely follows R = Ro e[Beta (1/T - 1/To)] where R is the resistance in ohms measured at temperature K, and Beta is a material constant. What are the units of Beta and Ro? Clearly show how you decided on your answer.arrow_forwardThe diffusion constant for injected electrons in a molecular crystal is 1x10^-2 cm^2/s at room temp. What is the mobility? What is the drift velocity in n electric field of 1x10^5 Volts/cm?arrow_forward
- b)Super conductor aluminum has critical temperature of 7.26K at zero magnetic fields and a critical field of 5×10^5 A/m at zero Kelvin. Find the critical magnetic field at 3K……arrow_forwardAt what pressure, in atmospheres, would the number of molecules per unit volume in an ideal gas be equal to the number density of the conduction electrons in copper, with both gas and copper at temperature T =300 K?arrow_forwardThe concentration of H+ ions outside a membrane is 18 % of the concentration inside the membrane. What must be the Nernst potential across the membrane to maintain that concentration difference when the temperature is such that the КВТ quantity =29 mV. e ΔΕ Remember, the Boltzmann probability factor: 1.38 x 10-23, and the J 10-19 C. Express your answer in mV = Ze BT, Boltzmann's constant is kB charge on a proton is e = +1.6 x milli-Volts = 10³ Volts K Your Answer: -49.73 mV Answer unitsarrow_forward
- Calculate the drift current density in a gallium arsenide sample at T = 300 K, with doping concentration of Na = 0 and Na = 1021/m³. If u, = 0.85 m2/V.s, 4, 0.04 m2/V.s, E = 15 V/cm, and n, = 2.2 x 1017/m2.arrow_forwardAluminum has a density of 2.70 x 103 kg/m3 at a temperature of 293 K, and its molar mass is 26.98 g. (a) Compute the number of aluminum atoms per unit volume at that temperature. (b) Use the fact that EF 11.63 eV for aluminum at 293 K to fi nd the number density of free electrons. (c) Combine your results from (a) and (b) to estimate the number of conduction electrons per atom—the valence number for aluminumarrow_forwardHow much work do we have to do (in J, at a constant temperature) to atomize a liquid with a volume of 1 dm3 if droplets of the same size are formed during atomization? For simplicity, assume that the droplet is cube-shaped with an edge length of 1000 nm and a surface tension of 50 mJ / m2.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
University Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSON
Introduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Lecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:9780321820464
Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON