Q1: A phonograph record carries a uniform surface charge density a (static electricity). If it rotates at an angular velocity w a) What is the surface current density K a distance r from the center? b) Find the magnetic field at a point Z> R on the axis.

Q1: A phonograph record carries a uniform surface charge density a (static electricity). If it rotates at an angular velocity w a) What is the surface current density K a distance r from the center? b) Find the magnetic field at a point Z> R on the axis.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Q: Can you help with 2a and b 2a. Nonnuclear submarines use batteries for power when submerged. Find…

A: Determine the magnetic field as, Solve as,

Q: A toroid has 250 trims of wire and carries a current of 20 A. Its inner and outer radii are 8.0 and…

A: Given that-Number of turns in a wire are 250Current in the toroid is 20AThe outer and inner radii of…

Q: Wires 1 and 2 carry the same current. The magnitude of the magnetic field created by current 1 at…

Q: Working electron. An electron with charge -|e| and mass me is launched with an initial velocity vî —…

A: (1) In uniform magnetic field. Charged particle executes uniform circular motion. Work done in…

Q: . A magnetic field has a magnitude of 1.2 x 10-3 T, and an elect nas a magnitude of 4.6 x 10 N/C.…

Q: A circular conducting loop of radius 8m, centered at origin in the plane z=0 carries a current of 4…

Q: R

A: Assume the given copper bar to be whole and that the given cavity contributes a current (I2) in the…

Q: A beam of protons with various speeds is directed in the sitive z direction. The beam enters a…

Q: A y R/4 A solid infinitely long conducting cylinder of radius R 80 cm has a cylinder of radius R/4…

A: Net magnetic field at point A will be: B=B1+B2 here, B1 = Magnetic field due to complete wire of…

Q: concentric thin Consider two perfectly-conducting cylindrical shells of infinite length with axes…

A: Given: The radius of the inner shell is a The radius of the outer shell is b The current flows in…

Q: A spherical shell of radius R carries a surface current density given by K, = K,ô (0 s 0 s and K =…

A: We have to find magnetic field at center O.

Q: You observe an electron moving on your screen in a clockwise circle of radius 9.09 cm, at a constant…

A: Radius, R = 9.09 cm = 0.0909 mSpeed, V = 9.72 x 10^6 m/sField, B = ?

Q: A circular ring with radius r is carrying a total charge of –q (negative charge) uniformly. The is…

A: Given, A circular ring with radius r is carrying a total charge of -q uniformly. The ring is…

Q: An infinitely long cylindrical wire with a radius of 0.05 m carries an electric current with a…

A: It is given that, The radius of the cylindrical wire is =0.05 m.…

Q: long, straight copper wire with a diameter of 3.75 mm carries a current of 3.50 A. Assume the…

Q: 2. A conducting loop in the shape of a square of edge length 1 carries a current I. a) Calculate the…

A: Given that:-Length of square, lCurrent, IMagnetic field due to a current carrying wire,…

Q: Faraday's Law (A loop of wire in a magnetic field). A square loop of wire of side L=0.50 cm is in a…

Q: In a long conductive cylinder with radius R there is a cylindrical cavity with radius a, with the…

A: Given:Radius of the cylinder, Rradius of cylindrical cavity, adistance between center of cylinder…

Q: The infinite length wires in the figure carry current i1 = i2 = i3 = 5A. If a = 10 cm: a) Determine…

Q: A very long cylindrically symmetric conducting cylinder has an inner radius of r1=5.06cm and an…

Q: P2.- At a given point, a proton experiences the forces by a uniform electric field, having a…

Q: 1. Consider the uniformly magnetized infinite circular cylinder of radius R at z-axis. The…

Q: A circular parallel plate capacitor of radius Ris being charged via a wire with current I. Use…

A: The divergence at one location in a static electric field equals the electric charge volume density…

Q: A long cylindrical conductor carries electric current with the current density defined as ? = ??^2,…

A: Answer Given data C=3×106 A/m4 r2=2 cm r1= 1 cm

Q: The density of the magnetic field produced by an electrical current flowing through an infinite…

A: Introduction: Magnetic field: The term magnetic field was introduced in 1845 by Faraday, who…

Q: Q4 A circular filamentary conductor with radius of 4 meter carrying uniform current 7A. Using…

Q: In the figure, point P₂ is at perpendicular distance R=20.0 cm from one end of straight wire of…

Q: 2. (OpenStax College. University Physics. Vol 2.) A 10-A current flows through the wire shown. What…

Q: What is the magnitude of the force per meter of length on a straight wire carrying an 9.10-A current…

Q: 1. Inside a particle accelerator, charged particles are accelerated through a uniform magnetic field…

Q: Consider two very long cylindrical wires (see image) of radius R, with current moving in the same…

A: Solution:Step 1: Understanding the ProblemExplanation:We have two long cylindrical wires with radius…

Q: 2. A conducting loop in the shape of a square of edge length I carries a current I. a) Calculate the…

Q: A coaxial cable is carrying a uniformly distributed current of 100 A in the inner conductor and -100…

A: Using Ampere’s law ∮H→·dl→=IencH2πr=IinnerH=Iinner2πr

Q: A total charge q is distributed uniformly over the surface of a spherical insulator of radius R. The…

A: Radius of sphere =R charge on sphere = q So surface charge density will be σ And σ=total charge on…

Q: Consider a long, thick current-carrying wire with radius R. A. Find the magnetic field at z=R from…

A: According to Ampere circuital law Line integration of magnetic field over a close loop is μ₀ times…

Q: A horizontal magnetic field of 1 x 10-11 T (Teslas) exists at an angle of 30 degrees to the…

A: a) The required magnitude of force is,

Q: A straight wire of length 49.2 cm carries a current of 50 A and makes an angle of 60° with a uniform…

A: Write the expression for magnetic force on a current carrying straight wire. F=ILBsinθ…

Q: A2.1 mm -diameter copper wire carries a 39 A current (uniform across its cross section). Determine…

A: Given Diameter of copper wire = 2.1 mm Current through wire 39 A To find out Magnetic field at…

Q: . A uniform electric field E and a uniform magnetic field B are present in some region. A particle…

A: a. For the particle to move with constant speed, the electric and magnetic fields must be oriented…

Q: 5. A long cylindrical conductor of radius R carries a current I. The current density is non-…

A: Radius of long cylindrical conductor = R J=br, where b is a constant. Consider a small element dr at…

Q: Two VERY LONG wires are placed along parallel lines as shown below in the picture. The wire ON THE…

A: The magnetic field due to a infinitely long straight current carrying wire is given by B=μ0 I2πd, d…

Q: Two long wires are oriented so that they are perpendicular to each other. At their closest, they are…

A: The magnetic field due to a wire is circumferential and its magnitude is given by given by, From…

Q: Q2/ suppose motion of a charged particle in a uniform constant magnetic field in the z-axis. Prove…

Q: A long, cylindrical conductor of radius a has two cylindrical cavities each of diameter a through…

A: Consider the figure below.

Q: The x, y, and z components of a magnetic field are B, 0.13 T.B, 0.16 T, and B, - 0.25 T.A 29-cm wire…

A: Since,more than one question is asked,solution for the first one is provided here. Please upload the…

Q: A very long, right circular cylindrical copper wire has an outer radius a and carries a non-uniform…

Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

Question

Q1:A phonograph record carries a uniform surface charge density a (static
electricity). If it rotates at an angular velocity w
a) What is the surface current density K a distance r from the center?
b) Find the magnetic field at a point Z> R on the axis.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Given that

VIEW

Step 2: b) Find the magnetic at a point Z>R on the axis

VIEW

Solution

VIEW

Step by step

Solved in 3 steps with 10 images

SEE SOLUTION Check out a sample Q&A here

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

A square wire loop is on the x and y plane with the center is located on the origin (zero), and the sides are 20cm long. The wire has a 5.0A current traveling clockwise. What is the magnetic field vector at the origin? What is the magnetic field vector at x=5cm, y=0cm? What is the magnetic field vector at x=15cm, y=0cm?
A wire carries current 0.500 A out of the page as shown. What is the magnetic field y direction at point P? P right down left up
a: A current of I =1 A flows through a very long straight wire. How far away from the wire does the magni- tude of the created magnetic field equal the magni- tude of earths magnetic field Bearth 5 x 10-5T. (Remember that the permeability of free space is Ha = 4n x 10-7Tm/A)
Select the correct expression for the magnitude of electromotive force (e.m.f) of a straight conductor of length I moving with the velocity v perpendicular to a magnetic field B. Select one: a. € = Bu/I b. € = VBul C. E = Bul d. e = Bul?
The magnetic field intensity in a magnetic material in the form of a circular rod with magnetic permeability n with its axis in the z direction is azH0(H0 is constant). 1)what's B and M inside the bar? What are the equivalent magnetizing current densities jmv and jms for the magnetized rod?
A very long hollow cylindrical conductor has a current i flowing in it in the direction 2) out of the page. The current density is constant throughout the conductor. The inner radius of this conductor is R1 and the outer radius is R2. a) What is the current density inside the conductor? A Derive the magnetic field (magnitude and direction) R2 b) for radiusr> R2? c) for R1
give answer of a and b.
1. A magnetic field has a magnitude of 1.50 × 10-³ T, and an electric field has a magnitude of 4.00 × 10³ N/C. Both fields -3 point in the same direction. A positive 2.5 µC charge moves at a speed of 2.50 × 106 m/s in a perpendicular to both fields. Determine the magnitude of the net force that acts on the charge. N ssfánection that is 0 ssf60 sf60 ss 50 ssf6 €60 ssf60 ss
4. Figure in the below shows a cross section of a hollow cylindrical conductor of radii a and b, carrying a uniformly distributed current i. a) Show that the magnetic field magnitude B(r) for the radial distance rin the range. b
A charged particle moves through a velocity selector at constant velocity. The velocity selector is configured with "crossed" electric and magnetic fields of magnitude E = 1.50 x 104 N/C and B = 0.4 T. %3D Hint a. What is the velocity of the charged particle? Velocity of the charged particle is x 104 m/s. b. When the electric field is turned off, the charged particle travels in a circular path of radius 6 mm, as it travels through the magnetic field (still at B = 0.4 T). What is the mass-to-charge ratio of the particle? Hint for (b) Mass-to-charge ratio of the part is kg/C. (Use the "E" notation to enter your answer in scientific notation. For example, to enter 3.14 × 10´ 12".) - 12 enter "3.14E-
9. An infinite sheet of current lying in the yz plane carries a surface current of linear density J, (i.e. amps/m). The current is in the positive z direction and J; represents the current per length measured along the y axis. Prove that the magnetic field near the sheet is parallel to the sheet and perpendicular to the current direction, with a magnitude of Ho Js / 2.
5. A cylindrical conductor with radius R carries a current that is nonuniformly distributed over the cross-section of the conductor, whose the current density is J = ar, a is a constant and > is the radial distance from the cylinder axis. (1) Find the total current in the conductor. (2) Find the magnetic field B as a function of the distance from the conductor axis for points both inside (r R) the conductor.