Physics for Scientists and Engineers with Modern Physics
4th Edition
ISBN: 9780131495081
Author: Douglas C. Giancoli
Publisher: Addison-Wesley
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 27, Problem 49P
(II) In a probe that uses the Hall effect to measure magnetic fields, a 12.0-A current passes through a 1.50-cm-wide 1.30-mm-thick strip of sodium metal. If the Hall emf is 1.86 μV, what is the magnitude of the magnetic field (take it perpendicular to the flat face of the strip)? Assume one free electron per atom of Na, and take its specific gravity to be 0.971.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Plz correct solution
2) What is the radiation resistance of a short dipole flowing 10A over it if the maximum power
density emitted to a point 1 km away from it is 60nW / m2?
Üzerinden 10A akan bir kısa dipol kendisinden 1 km uzaklıktaki bir noktaya yaydığı maksimum güç yoğunluğu
60nW/m2 ise ışıma direnci nedir?
O 0.01ohm
2
O 10 ohm
O 0.5 ohm
O 1 ohm
O 0.1 ohm
(II) What is the velocity of a beam of electrons that goes
undeflected when moving perpendicular to an electric
and to a magnetic field. E and B are also perpendicular
to each other and have magnitudes 7.7 × 10° V/m and
7.5 × 103T, respectively. What is the radius of the
electron orbit if the electric field is turned off?
Chapter 27 Solutions
Physics for Scientists and Engineers with Modern Physics
Ch. 27.1 - Prob. 1AECh. 27.2 - Prob. 1BECh. 27.3 - A wire carrying current I is perpendicular to a...Ch. 27.3 - A straight power line carries 30A and is...Ch. 27.4 - Prob. 1EECh. 27.4 - What is the sign of the charge in Fig. 2719? How...Ch. 27.4 - A particle in a velocity selector as diagrammed in...Ch. 27 - A compass needle is not always balanced parallel...Ch. 27 - Prob. 2QCh. 27 - A horseshoe magnet is held vertically with the...
Ch. 27 - In the relation F=IlB, which pairs of the vectors...Ch. 27 - The magnetic field due to current in wires in your...Ch. 27 - If a negatively charged particle enters a region...Ch. 27 - In Fig. 2734, charged particles move in the...Ch. 27 - A positively charged particle in a nonuniform...Ch. 27 - Note that the pattern of magnetic field lines...Ch. 27 - Explain why a strong magnet held near a CRT...Ch. 27 - Describe the trajectory of a negatively charged...Ch. 27 - Can you set a resting electron into motion with a...Ch. 27 - A charged particle is moving in a circle under the...Ch. 27 - The force on a particle in a magnetic field is the...Ch. 27 - A beam of electrons is directed toward a...Ch. 27 - A charged particle moves in a straight line...Ch. 27 - If a moving charged particle is deflected sideways...Ch. 27 - How could you tell whether moving electrons in a...Ch. 27 - How can you make a compass without using iron or...Ch. 27 - Prob. 20QCh. 27 - In what positions (if any) will a current loop...Ch. 27 - A rectangular piece of semiconductor is inserted...Ch. 27 - Two ions have the same mass, but one is singly...Ch. 27 - (I) (a) What is the force per meter of length on a...Ch. 27 - (I) Calculate the magnitude of the magnetic force...Ch. 27 - (I) A 1.6-m length of wire carrying 4.5 A of...Ch. 27 - (II) The magnetic force per meter on a wire is...Ch. 27 - (II) The force on a wire is a maximum of 7.50 102...Ch. 27 - (II) Suppose a straight 1.00-mm-diameter copper...Ch. 27 - Prob. 7PCh. 27 - (II) A long wire stretches along the x axis and...Ch. 27 - (II) A current-carrying circular loop of wire...Ch. 27 - (II) A 2.0-m-long wire carries a current of 8.2 A...Ch. 27 - Prob. 11PCh. 27 - (III) A circular loop of wire, of radius r,...Ch. 27 - (I) Determine the magnitude and direction of the...Ch. 27 - (I) An electron is projected vertically upward...Ch. 27 - (I) Alpha particles of charge q = +2e and mass m =...Ch. 27 - (I) Kind the direction of the force on a negative...Ch. 27 - (I) Determine the direction of B for each ease in...Ch. 27 - Prob. 18PCh. 27 - (II) A doubly charged helium atom whose mass is...Ch. 27 - (II) A proton (mass mp), a deuteron (m = 2mp, Q =...Ch. 27 - (II) For a particle of mass m and charge q moving...Ch. 27 - (II) An electron moves with velocity...Ch. 27 - (II) A 6.0-MeV (kinetic energy) proton enters a...Ch. 27 - (II) An electron experiences the greatest force as...Ch. 27 - (II) A proton moves through a region of space...Ch. 27 - (II) An electron experiences a force...Ch. 27 - (II) A particle of charge q moves in a circular...Ch. 27 - (II) An electron enters a uniform magnetic field B...Ch. 27 - Prob. 29PCh. 27 - (II) The path of protons emerging from an...Ch. 27 - (III) Suppose the Earths magnetic field at the...Ch. 27 - Prob. 32PCh. 27 - (III) A proton moving with speed = 1.3 105 m/s...Ch. 27 - (III) A particle with charge +q and mass m travels...Ch. 27 - (I) How much work is required to rotate the...Ch. 27 - (I) A 13.0-cm-diameter circular loop of wire is...Ch. 27 - (II) A circular coil 18.0 cm in diameter and...Ch. 27 - (II) Show that the magnetic dipole moment of an...Ch. 27 - (II) A 15-loop circular coil 22 cm in diameter...Ch. 27 - (III) Suppose a nonconducting rod of length d...Ch. 27 - (I) If the current to a motor drops by 12%, by...Ch. 27 - (I) A galvanometer needle deflects full scale for...Ch. 27 - (I) If the restoring spring of a galvanometer...Ch. 27 - Prob. 44PCh. 27 - (II) An oil drop whose mass is determined to be...Ch. 27 - (II) A Hall probe, consisting of a rectangular...Ch. 27 - (II) A Hall probe used to measure magnetic field...Ch. 27 - (II) A rectangular sample of a metal is 3.0 cm...Ch. 27 - (II) In a probe that uses the Hall effect to...Ch. 27 - Prob. 50PCh. 27 - Prob. 51PCh. 27 - (II) One form of mass spectrometer accelerates...Ch. 27 - (II) Suppose the electric field between the...Ch. 27 - (II) A mass spectrometer is being used to monitor...Ch. 27 - (II) An unknown particle moves in a straight line...Ch. 27 - Protons move in a circle of radius 5.10 cm in a...Ch. 27 - Protons with momentum 3.8 1016 kg m/s are...Ch. 27 - A proton and an electron have the same kinetic...Ch. 27 - Prob. 59GPCh. 27 - Prob. 60GPCh. 27 - Near the equator, the Earths magnetic field points...Ch. 27 - Calculate the magnetic force on an airplane which...Ch. 27 - A motor run by a 9.0-V battery has a 20 turn...Ch. 27 - Estimate the approximate maximum deflection of the...Ch. 27 - Prob. 65GPCh. 27 - The cyclotron (Fig. 2750) is a device used to...Ch. 27 - Magnetic fields are very useful in particle...Ch. 27 - A square loop of aluminum wire is 20.0 cm on a...Ch. 27 - A sort of projectile launcher is shown in Fig....Ch. 27 - Prob. 70GPCh. 27 - In a certain cathode ray tube, electrons are...Ch. 27 - Prob. 72GPCh. 27 - A proton follows a spiral path through a gas in a...Ch. 27 - Prob. 74GPCh. 27 - The power cable for an electric trolley (Fig....Ch. 27 - A uniform conducting rod of length d and mass m...Ch. 27 - In a simple device for measuring the magnitude B...
Additional Science Textbook Solutions
Find more solutions based on key concepts
26. The earth’s radius is about 4000 miles. Kampala, the capital of Uganda, and Singapore are both nearly on t...
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
26. When striking, the pike, a predatory fish, can accelerate from rest to a speed of 4.0 m/s in 0.11 S.
a. Wh...
College Physics: A Strategic Approach (3rd Edition)
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective (8th Edition)
Using energy considerations and assuming negligible air resistance, show that a rock thrown from a bridge 20.0 ...
College Physics
The speed of the person sitting on the chair relative to the chair and relative to Earth.
Conceptual Physics (12th Edition)
1.79 Vectors and have scalar product ?6.00, and their vector product has magnitude +9.00. What is the angle b...
University Physics with Modern Physics (14th Edition)
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
- Check Your Understanding A Hall people consists of a copper strip, n=8.51028 electrons per cubic meter, which is 2.0 cm wide and 0.10 cm thick. What is the magnetic held when I = 50 A and the Hall potential is (a) 4.0µV and (b) 60µV?arrow_forwardAn electron of kinetic energy 2000 eV passes between parallel plates that are 1.0 an apart and kept at a potential difference of 300 V. What is the strength of the uniform magnetic field B that will allow the electron to travel undeflected through the plates? Assume E and B are perpendicular.arrow_forwardThe density of charge carriers far copper is 8.471028 electrons per cubic meter. What will be the Hall voltage reading from a probe made up of 3cm2cm1cm ( (LWT) ) copper plate when a current of 1.5 A is passed through it in a magnetic field of 2.5 T perpendicular to the 3cm2cm .arrow_forward
- Check Your Understanding In what orientation would a magnetic dipole have to be to produce (a) a maximum torque in a magnetic field? (b) A maximum energy of the dipole?arrow_forwardA proton precesses with a frequency p in the presence of a magnetic field. If the intensity of the magnetic field is doubled, what happens to the precessional frequency?arrow_forwardA particle having the same charge as of electron moves in a circular path of radius 0.5 cm under the influence of a magnetic field of 0.5 T. If an electric field of 100 V/m makes it to move in a straight path, then the mass of the particle is (Take, charge of electron = 1.6 × 10-¹9 C)arrow_forward
- (b) The retarded potentials of an oscillating electric dipole is given as Po cos e 1 (r, 6,t) = sin(w(t - ric))+coslw(t - r/c)]} Ā(r, 6,t) : Ho Pow sinfw(t – r/c)] 4Tr Derive the expression for the Electric and Magnetic fields for an oscillating electric dipole using the above retarded potentials under far-field approxi- mation. Also show that the fields are perpendicular to each other.arrow_forward(a) The electrostatic force (not energy) of attraction betweentwo oppositely charged objects is given by the equationF = k1Q1Q2>d22 where k = 8.99 * 109 N@m2>C2, Q1 andQ2 are the charges of the two objects in Coulombs, and d isthe distance separating the two objects in meters. What isthe electrostatic force of attraction (in Newtons) between anelectron and a proton that are separated by 1.00 * 102 pm?(b) The force of gravity acting between two objects is givenby the equation F = G1m1m2>d22, where G is the gravitationalconstant, G = 6.674 * 10-11N-m2/kg2, m1 and m2 arethe masses of the two objects, and d is the distance separatingthem. What is the gravitational force of attraction (inNewtons) between the electron and proton? (c) How manytimes larger is the electrostatic force of attraction?arrow_forwardNeed this Solution Sirarrow_forward
- Tutorial Exercise In an experiment designed to measure the Earth's magnetic field using the Hall effect, a copper bar 0.495 cm thick is positioned along an east-west direction. Assume n = 8.46 × 1028 electrons/m³ and the plane of the bar is rotated to be perpendicular to the direction of B. If a current of 8.00 A in the -12 conductor results in a Hall voltage of 4.37 x 10 V, what is the magnitude of the Earth's magnetic field at this location? Part 1 of 3 - Conceptualize From this Table of Approximate Magnetic Field Magnitudes, the magnitude of the Earth's magnetic field is about 50 μT. We expect a result with this order of magnitude. Part 2 of 3 - Categorize We will find the magnitude of the magnetic field from the equation for the Hall effect voltage. Part 3 of 3 - Analyze Hall effect voltage is given by the following. IB nqt' AVH where I is the current, n is the volume density of electrons, B is the magnitude of the magnetic field, and t is the thickness of the copper bar. Solving…arrow_forwardum)A proton (q=1.6 x Directions of ở and B for a proton in a magnetic field. 10 -19 C) has an energy 5 MeV moves with velocity v through a uniform 2.0 T magnetic field directed along the positive z-axis, proton moves in the x-z plane and makes an angle 30° with the magnetic field as shown in the figure. (a)- Write v & B in vector form by using the components of v & B. (b) Find the speed of the electron by using the given energy value. Remember that 1Mev =1.6x10 13 J. (c)- By using the vector equation calculate the vector magnetic force. Find the direction of the magnetic force on proton by using the right hand rule. (d) Use scaler magnetic force equation calculate the magnitude of magnetic force. (Important note:If you are not able to do part (a), it means you cannot do part (c). Then do part (d) , but if you do part (c) then you do not need to do part (d)). 30 ởarrow_forwardof rad 11) se the el According to the classical model of the Hydrogen atom, an electron moves in a circular orbit of radius r= 3a in the xy-plane with constant velocity in the counter-clockwise direction around the proton. Find the current produced due to the motion of the electron during its motion and the magnetic dipole moment in terms of unit vectors. a) / =i= (-R) ev eva 2. 2na 2. 2ev b) I 47ma ;i = eva(-k) Sevo 3eva c) = 6na (-k) d) = i = 2eva(-k) 8ra işare krar seva (-k) e)/ 10maarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Modern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage Learning
Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Modern Physics
Physics
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Cengage Learning
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
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