Conducting Definition and 562 Threads

the charge on a body can be distributed throughout the entire volume only if the body is non-conducting,and the charge on a conducting body can reside only on the surface. I'm confused , why?

Homework Statement A conducting coil of 1830 turns is connected to a galvanometer, and the total resistance of the circuit is 41.0 . The area of each turn is 4.70 10-4 m2. This coil is moved from a region where the magnetic field is zero into a region where it is nonzero, the normal to the...

hey sorry for the prolific posting but exam's are coming up and I'm just working through past papers. two conducting parallel plates have uniform uniform current densities flowing through them parallel to their surface. Use Ampere's Law to find the magnetic field inside and outside the...

Homework Statement I am a bit stuck with how to approach this questions; "A thin conducting spherical shell of radius a carries a charge q. Concentric with this is another spherical shell of radius b>a carrying a net charge Q. Describe how the charge is distributed between the inner and outer...

Diffraction by a perfectly conducting cylinder using UTD?! Hi all, Does anybody know the equations needed to predict the diffraction of electromagnetic waves by a perfectly conducting cylinder using UTD? I want to use these equations in ray tracing. I tried to read some papers and a book...

Homework Statement A 33 -cm-diameter conducting sphere is charged to 457 V (relative to a point an infinite distance from the sphere where the potential is zero). a. What is the surface charge density σ? Homework Equations Surface Area= 4(pi)r^2 Surface Charge Density= Q/A V=kQ/r...

Hello fellow physicists! This is a problem out of my graduate E&M course, and I was hoping some of y'all might have some ideas on it. We have an uncharged conducting sphere. It is floating half-submerged in a bath of oil (with dielectric constant \epsilon ). Now we put a charge Q on the...

A hollow metal sphere has a potential of +320 V with respect to ground (defined to be at V = 0) and has a charge of 4.4 x 10-9 C. Find the electric potential at the center of the sphere. How do you do this. They don't give the radius which would help.

Homework Statement Three conducting spheres of radii a, b and c, respectively, are connected by negligibly thin conducting wires as shown in figure 4. Distances between spheres are much larger than their sizes. The electric field on the surface of the sphere of radius a is measured to be...

Homework Statement 10C of charge are placed on a spherical conducting shell. A -3C point charge is placed at the center of the cavity. The net charge in coulombs on the inner surface of the shell is... A. -7 B. -3 C. 0 D. +3 E. +7 Homework Equations \oint \vec{E}\cdot d\vec{a}...

Homework Statement Two infinite sheets with surface charge density σ1 and σ2, respectively, are oriented perpendicular to the x-axis. An infinite, conducting slab of thickness a is placed between the charged sheets as shown in the figure. The conducting plate has a net charge per unit area of...

Homework Statement Consider a solid conducting sphere with a radius 0.7 cm and charge −7.3 pC on it. There is a conducting spherical shell concentric to the sphere. The shell has an inner radius 2.8 cm(with 2.8 cm > 0.7 cm) and outer radius 5 cm and a net charge 27.9 pC on the shell. Denote...

Hi, can anyone help me to solve this problem... An isolated conducting sphere which radius R is 6.85cm has a charge q=1.25nc. Determine how much potential energy stored in conducting sphere? I try to solve it but can't get the ans...the hint given is...

Homework Statement A very long conducting tube (hollow cylinder) has inner radius a and outer radius b. It carries charge per unit length + \alpha , where \alpha is a positive constant with units of C/m. A line of charge lies along the axis of the tube. The line of charge has charge per unit...

Homework Statement Suppose a point dipole is located at the centre of a grounded spherical conducting shell. Find the potential and electric field at points inside the shell. (Hint: Use zonal harmonics that are regular at the origin to satisfy the boundary conditions on the shell.)Homework...

Homework Statement Consider a conducting spherical shell with inner radius 0.8 m and outer radius 1.3 m. There is a net charge 3 μC on the shell. At its center, within the hollow cavity, there is a point charge 3 μC. Determine the flux through the spherical Gaussian surface S, which has a...

Homework Statement A point charge is at the center of a conducting hollow sphere, with radius 0.011m, that is within another conducting hollow sphere of radius 0.041m. The point charge is Q0=+4.30e-6 C, the inner sphere has a net charge of Q1=-1.70e-6 C, and the outer sphere has a net charge...

Homework Statement A charge Q is placed at height b abouve a plane horizontal conducting slab. Write down the electric field, E(r), at a general point r above the slab (taking the point r=0 to be the point on the slab directly beneath the charge), and show that it satisfies the...

A conducting sphere of radius a carries a charge Q on its surface. (i) Find its potential \varphi(r) for r > a (choosing \varphi = 0 very far away), and thus the potential V (Q) = \vaprhi(a) on the surface of the sphere. (Rii) Explain why the electrostatic energy of the charged sphere can be...

This is just a quick conceptual question. If you have a charge on the surface of a conductor, and the gaussian surface within that has a cavity containing a positive charge... and you move that charge off-center, does that affect the charge distribution on the surface of the conductor?

Homework Statement Three thin (but finite thickness) concentric conducting shells have radii R1 < R2 < R3 and charges -2Q, +Q, and +3Q respectively, where Q is some positive number. What is the charge on the inner surface of the outmost shell? Homework Equations Charge on a conductor...

Homework Statement A metal bar of mass m slides frictionlessly on two parallel conducting rails a distance l apart. A resistor R is connected across the rails and a uniform magnetic field B , pointing into the page , fills the entire region. a) If the bar moves to the right at speed v, what...

Hello guys, I'm having some trouble getting my head around the method of images, partly due to confusing notes and things. If I have a charge +q at a fixed point (0,0,a) above a conducting plane that is held at zero potential, it is said that the plane can be replaced with a charge of -q...

Homework Statement A conducting sphere of radius R carries a total charge of +Q. Its center is placed a distance 2R to the right of a grounded conducting plate. What is the potential at a general point in space outside the sphere and to the right of the plane? (Carry out to at least four...

Homework Statement Hospital operating theatres, floors are made out of conducting material and staff wear shoes made of conducting material not insulating material. How sis charge built up on insulating soles and how does using conducting material reduce charge & sparks? Homework...

Homework Statement 2 conducting spheres with radii 2 & 3m are connected with a conducting rod of thickness 0.1m & length 0.5m. 500C charge is put on the 2m radius sphere. Find the amount of charge on each sphere & on the rod. Homework Equations The Attempt at a Solution By...

Homework Statement A capacitor is formed of two concentric spherical conducting shells of radii r1 and r3. The space between the shells is filled from r1 to r2 with a dielectric of relative permittivity \epsilonr1 and from r2 to r3 with a dielectric of relative permittivity \epsilonr2...

A spherical conducting shell has an inner radius R1 and outer radius R2 There is a charge Q1 spread uniformly on the inner radius THere is a charge Q2 spread uniformly on the outer radius what is the potential for a distance R1<r<R2? What is the potential for a distance r<R1...

1. A thick conducting cylindrical shell has an inner radius Rsub1 and outer radius Rsub2. It has a net excess charge = Q, and it is L long. Find electric field at certain points given. Ok, when r is less than Rsub 1, the electric field is zero. And when r is greater than Rsub2, it is easy to...

i've just had this thing running through my head that I'm trying to resolve: 1. two parallel wires that conduct a current (same charge carriers) will attract one another, that is the magnetic force each wire emits due to the flowing current will induce an attractive force in the other (charge...

This is a problem I found while studying for an exam I have next thursday, and conceptually it doesn't make any sense for me! NOTE - This is not a dieletrics problem. Homework Statement A conducting slab with a thickness d and area A is inserted into the space between the plates of a...

A conducting slab of side length of w carries a net charge of Q. Find the charge density and electric field just outside one face of the slab. *So would the charge density = Q/w*w*2 because there are 2 sides? *And would the E just be density/2*(epsilon = permissivity constant) because you...

Hi guys, New here! So bear with me. I know this question has been answered partially before. I have a little confusion however. Question: two large neutral conducting sheets are connected by a wire and at a distance D from each other. A charge +q is placed a distance b from one of the...

A bar magnet falling vertically through a stationary horizontal loop of conducting wire. Then, there are two questions related to this problem. 1. As the south pole of the magnet approaches the loop, the current in the loop 1) decreases 2) increases 3) remains the same 2. As the south...

Homework Statement Two conductors, A and B, are each in the shape of a tetrahedron, but of different sizes. They are charged in the following manner: 1) Tetrahedron A is charged from an electrostatic generator to charge . 2) Tetrahedron A is briefly touched to tetrahedron B. 3) Steps 1...

-------------------------------------------------------------------------------- I need to find the work it would take an applied force to assemble a conducting sphere of radius R and charge Q at constant kinetic energy from infinity. Tried: Since the Electric Field inside the conductor...

An uncharged spherical conducting shell surrounds a charge -q at the center of the shell. The charges on the inner and outer surfaces of the shell are respectively... For this question I know that the charges are going to be +q, -q respectively. However, what if the center charge wasn't...

A thin charged (charge=Q) ring of radius a centered on the z axis lies in the x-y plane. The potential outside the ring is given. Now the ring is placed inside a grounded conducting spherical shell of radius b > a. What is the potential inside the ring and between the ring and the sphere...

Hi everyone. I'm having a bit of trouble with finding an electric field. Basically, I'm trying to understand the formula for a cylindrical capacitor, so the method involves integrating the field between two conducting cylindrical shells. Firstly can Gauss's law be used in this case, because the...

Hi everyone, I have some queries regarding the situation where a point charge is placed at a distance from an infinite conducting plane:say the plane is the xy plane and the charge is above it at distance z: 1) If the plane is at non-zero potential, is that true that the plane will not...

Homework Statement A point charge q is located in the xy plane near two grounded conducting planes intersecting at right angles as shown in the Figure. The z axis lies along the line of intersection of the planes. Find and justify (mathematically show) the force acting on this charge q...

A 0.380 m long cylindrical capacitor consists of a solid conducting core with a radius of 1.15 mm and an outer hollow conducting tube with an inner radius of 2.05 mm . The two conductors are separated by air and charged to a potential difference of 6.40 V . Calculate the charge per length for...

hey everybody, I am doing a physics project on the double slit experiment. (I know all the physics and math behind it so don't get into that stuff :P) I was just wondering if people had any suggestions on how to conduct the experiment, I was thinking of cutting two extremely small (knife blade)...

[SOLVED] Magnetic Field in a Rectangular Conducting Loop Homework Statement Figure 31-64a shows a rectangular conducting loop of resistance R = 0.010 , height H = 1.5 cm, and length D = 2.5 cm being pulled at constant speed v = 55 cm/s through two regions of uniform magnetic field. Figure...

Homework Statement Show that the energy associated with a conducting sphere of radius R and charge q surronded by a vacuum is given by u=kq^2/(2R). Homework Equations The Attempt at a Solution

Why the field lines are always perpendicular to the conducting line?

Homework Statement two thin conducting spheres, one inside the other. They are both centered about the same point. The outer sphere has a total charge Q and radius R2 and the inner sphere has a total charge -Q and radius R1. The magnitude of the charges is Q = 500 nC, and the radii are R1 =...

Let me preface this as this is my first post on this forum. I'm a physics major at Virginia Tech and I've lurked the forum for a while to help understand concepts that may not be intuitive initially. I'm stuck on this one concept, so I decided to give posting a shot. Without further ado...

Homework Statement A grounded conducting hollow sphere of radius a contains a ring of radius b and charge per unit length \Lambda. The ring is coaxil to the z axis, and with the sphere lies a distance d about the center of the sphere such that d^2 + b^2 < a^2. Find the potential within the...

Homework Statement An infinitely long conducting cylindrical rod with a positive charge "lambda" per unit length is surrounded by a conducting cylindrical shell (which is also infinitely long) with a charge per unit length of "-2 lambda" and radius r1. a) What is E(r) , the radial...