Physics for Scientists and Engineers With Modern Physics
9th Edition
ISBN: 9781133953982
Author: SERWAY, Raymond A./
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 30, Problem 50P
To determine
The number of electrons per atom that contribute to the saturated field of iron.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Fig. 1
25. A strip-like conductor with dimensions a b c = 6.0.5.6 mm³ is serving as a Hall-probe.
A current of 40 mA is flowing, and the sample is placed in a magnetic field B = 0.8T, as
a result a Hall-Votlage of UH = 20 mV is measured.
a) What is the charge carrier concentration in the sample?
b) What side of the strip-like probe accumulates negative charge if the charge transport
is done via electrons?
c) What Hall-voltage arises from bipolar conduction, hence when the same amount of
electrons and holes contribute to the conduction? Electrons and hole can be assumed to
have equal mobility.
Fig. 2
Hall measurements are made on a p-type semiconductor bar 500 u,m wide and
20 u,m thick. The Hall contacts A and B are displaced 2 p-m with respect to
each other in the direction of current flow of 3 mA. The voltage between A
and B with a magnetic field of 10 kG (lkG = 10^-5 Wb/cm2) pointing out of the
plane of the sample is 3.2 mV. When the magnetic field direction is reversed the
voltage changes to - 2 .8 mV. What is the hole concentration and mobility?
A Hall probe serves to measure magnetic field strength. One such probe consists of a poor conductor 0.135 mm thick, whose charge‑carrier density is 1.01×1025 m−3. When a 1.97 A current flows through the probe, the Hall voltage is measured to be 4.29 mV. The elementary charge ?=1.602×10−19 C.
What is the magnetic field strength ??
Chapter 30 Solutions
Physics for Scientists and Engineers With Modern Physics
Ch. 30.1 - Consider the magnetic field due to the current in...Ch. 30.2 - Prob. 30.2QQCh. 30.3 - Prob. 30.3QQCh. 30.3 - Prob. 30.4QQCh. 30.4 - Consider a solenoid that is very long compared...Ch. 30 - Prob. 1OQCh. 30 - Prob. 2OQCh. 30 - Prob. 3OQCh. 30 - Prob. 4OQCh. 30 - Prob. 5OQ
Ch. 30 - A long, vertical, metallic wire carries downward...Ch. 30 - Suppose you are facing a tall makeup mirror on a...Ch. 30 - Prob. 8OQCh. 30 - Prob. 9OQCh. 30 - Consider the two parallel wires carrying currents...Ch. 30 - Prob. 11OQCh. 30 - A long solenoid with closely spaced turns carries...Ch. 30 - Prob. 13OQCh. 30 - Prob. 14OQCh. 30 - Prob. 15OQCh. 30 - Prob. 1CQCh. 30 - Prob. 2CQCh. 30 - Prob. 3CQCh. 30 - A hollow copper tube carries a current along its...Ch. 30 - Prob. 5CQCh. 30 - Prob. 6CQCh. 30 - Prob. 7CQCh. 30 - Prob. 8CQCh. 30 - Prob. 9CQCh. 30 - Prob. 10CQCh. 30 - Prob. 11CQCh. 30 - Prob. 12CQCh. 30 - Prob. 1PCh. 30 - Prob. 2PCh. 30 - Prob. 3PCh. 30 - Calculate the magnitude of the magnetic field at a...Ch. 30 - Prob. 5PCh. 30 - In Niels Bohrs 1913 model of the hydrogen atom, an...Ch. 30 - Prob. 7PCh. 30 - Prob. 8PCh. 30 - Prob. 9PCh. 30 - Prob. 10PCh. 30 - Prob. 11PCh. 30 - Consider a flat, circular current loop of radius R...Ch. 30 - Prob. 13PCh. 30 - One long wire carries current 30.0 A to the left...Ch. 30 - Prob. 15PCh. 30 - Prob. 16PCh. 30 - Prob. 17PCh. 30 - Prob. 18PCh. 30 - Prob. 19PCh. 30 - Prob. 20PCh. 30 - Prob. 21PCh. 30 - Prob. 22PCh. 30 - Prob. 23PCh. 30 - Prob. 24PCh. 30 - Prob. 25PCh. 30 - Prob. 26PCh. 30 - Prob. 27PCh. 30 - Why is the following situation impossible? Two...Ch. 30 - Prob. 29PCh. 30 - Prob. 30PCh. 30 - Prob. 31PCh. 30 - The magnetic coils of a tokamak fusion reactor are...Ch. 30 - Prob. 33PCh. 30 - An infinite sheet of current lying in the yz plane...Ch. 30 - Prob. 35PCh. 30 - A packed bundle of 100 long, straight, insulated...Ch. 30 - Prob. 37PCh. 30 - Prob. 38PCh. 30 - Prob. 39PCh. 30 - Prob. 40PCh. 30 - A long solenoid that has 1 000 turns uniformly...Ch. 30 - Prob. 42PCh. 30 - Prob. 43PCh. 30 - Prob. 44PCh. 30 - Prob. 45PCh. 30 - Prob. 46PCh. 30 - A cube of edge length l = 2.50 cm is positioned as...Ch. 30 - Prob. 48PCh. 30 - Prob. 49PCh. 30 - Prob. 50PCh. 30 - Prob. 51APCh. 30 - Prob. 52APCh. 30 - Prob. 53APCh. 30 - Why is the following situation impossible? The...Ch. 30 - Prob. 55APCh. 30 - Prob. 56APCh. 30 - Prob. 57APCh. 30 - Prob. 58APCh. 30 - A very large parallel-plate capacitor has uniform...Ch. 30 - Prob. 60APCh. 30 - Prob. 61APCh. 30 - Prob. 62APCh. 30 - Prob. 63APCh. 30 - Prob. 64APCh. 30 - Prob. 65APCh. 30 - Prob. 66APCh. 30 - Prob. 67APCh. 30 - Prob. 68APCh. 30 - Prob. 69CPCh. 30 - Prob. 70CPCh. 30 - Prob. 71CPCh. 30 - Prob. 72CPCh. 30 - Prob. 73CPCh. 30 - Prob. 74CPCh. 30 - Prob. 75CPCh. 30 - Prob. 76CPCh. 30 - Prob. 77CP
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- In the upper half space, which is the empty space, I = 7 A current flows from the infinitely long wire along the y axis that intersects the z axis at the point C (0,0,10). Half-space z <0 is from a material with relative magnetic permeability µr = 5. Magnetic field in terms of given magnitudes Hx + Hy + Hz =? write it numerically.arrow_forwardThe Hall affect is used to measure the carrier density of a thin sheet of electrons. When a current of 80.0 µA flows through the length of the electron sheet, which is 1.2-mm long, 0.27- mm wide and 12-nm thick, a magnetic field perpendicular to the sheet produces a potential difference of 0.53 mV across the width of the sheet. If the carrier density in the electron sheet is 6.74 x 1025 m-3, what is the magnitude of the magnetic field?arrow_forwardAt saturation, when nearly all the atoms have their magnetic moments aligned, the magnetic field is equal to the permeability constant 0 multiplied by the magnetic moment per unit volume. In a sample of iron, where the number density of atoms is approximately 8.50 1028 atoms/m3, the magnetic field can reach 2.00 T. If each electron contributes a magnetic moment of 9.27 10-24 A m2 (1 Bohr magneton), how many electrons per atom contribute to the saturated Held of iron?arrow_forward
- Calculate r2 (column 5) and 1/r2 (column 7).arrow_forwardA Hall probe serves to measure magnetic field strength. One such probe consists of a poor conductor 0.121 mm thick, whose charge‑carrier density is 1.27×1025 m−3. When a 1.77 A current flows through the probe, the Hall voltage is measured to be 3.15 mV. The elementary charge e=1.602×10−19 C. What is the magnetic field strength B?arrow_forwardA sample of paramagnetic salt contains 2.0 × 1024 atomic dipoles each of dipole moment 1.5×10-23 J T-1. The sample is placed under a homogeneous magnetic field of 0.64 T, and cooled to a temperature of 4.2 K. The degree of magnetic saturation achieved is equal to 15%. What is the total dipole moment of the sample for a magnetic field of 0.98 T and a temperature of 2.8 K? (Assume Curie’s law)arrow_forward
- A monatomic ion has a charge of +2. The nucleus of the ion has a mass number of 86. The number of neutrons in the nucleus is 1.26 times that of the number of protons. How many electrons and what is the element?arrow_forwardQ. 19: If Ā = 2x²yî – 5xyz ĵ – 92³R , then find ī ×ī × Ā.arrow_forwardIt may be argued on theoretical grounds that the radius of the hydrogen atom should depend only on the fundamental constants h, e, the electrostatic force constant k = 1/4πℰ0, and m (the electron’s mass). Use dimensional analysis to show that the combination of these factors that yields a result with dimensions of length is h2kme2.arrow_forward
- Question 14. Must use formula from formula sheet. Not sure which onearrow_forwardQ. 1. A square of side L meters lies in the x-y plane in a region where the magnetic field is given by = B₁(21+3j+4k) Tesla, where Bo is constant. The magnitude of flux passing through the square is: (a) 2B L²Wb. (b) 3B L²Wb. (c) 4B L²Wb. (d) √√29B L²Wbarrow_forwardA paramagnetic material has bcc structure with cube edge 2.25 A°. If the saturation value of magnetization is 7.8 x 10^5 A/m. Average magnetization is 7.8 x 10^5 A/m. Evaluate the average magnetization contribution per atom in Bohr magneton.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningModern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Modern Physics
Physics
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Magnets and Magnetic Fields; Author: Professor Dave explains;https://www.youtube.com/watch?v=IgtIdttfGVw;License: Standard YouTube License, CC-BY