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2. A sphere of radius R has the dielectric constant e. The net charge on the...
2. A sphere of radius R has the diclectric constant e. The net charge on the...
2. A sphere of radius R has the diclectric constant e. The net charge on the sphere is zero but it has the polarization P-krf (C/n2) in spherical coordinates (k is a constant with the appropriate units) a) (12 points) Calculate the bound charge density ps(C/m3) and the surface bound charge density ơs(C/m2). b) (15 points) Calculate the E-field for R and for R. Use Coulomb's law with the net bound charge density (volume and surface) as oded. Which component(s)...
Consider a charged sphere of radius R. The charge density is not constant. Rather, it blows...
Consider a charged sphere of radius R. The charge density is not constant. Rather, it blows up at the center of the sphere, but falls away exponentially fast away from the center, p(r)=(C/r2)e-kr where C is an unkown constant, and k determines how fast the charge density falls off. The total charge on the sphere is Q. a) Write down the Electric Field outside the sphere, where r ≥ R, in term of the total Q. b) Show that C=...
A point charge q is placed in the center of a solid dielectric sphere of radius R and permittivit...
Pleasee I need the best answer!
A point charge q is placed in the center of a solid dielectric sphere of radius R and permittivity e constant. Assume that the dielectric material of the sphere is linear and that the point charge in the center of the sphere is the only free charge a Determine the electrical displacement inside and outside the sphere. b. Determine the electric field inside and outside the sphere c. Determine the polarization vector using (1)...
(This is based on Wangsness, Problem 10-8.) A sphere of radius a has a permanent f....
(This is based on Wangsness, Problem 10-8.) A sphere of radius a has a permanent f. (a) Find the bound charge densities in the volume and on the surface, 1. r and show that the total bound charge is zero as expected. (b) Find E everywhere, outside and inside the sphere, and verify that the normal and tangential components of E obey the expected boundary conditions at r = a. (c) Find ) everywhere, outside and inside, making sure it...
A homogeneous dielectric sphere, of radius a and relative permittivity Er, is situated in air. There...
A homogeneous dielectric sphere, of radius a and relative permittivity Er, is situated in air. There is a free volume charge density ρ(r)-Po r/a (0 a) throughout the sphere volume, where r is the distance from the sphere center (spherical radial coordinate) and po is a constant. (a) Determine the electric displacement vector D for 0 r 〈 00, (b) what is the electric field inside the sphere (0 r a)? (c) What is the electric field outside the sphere...
6. The electric potential at the surface of a sphere of radius R is constant, i.e.,...
6. The electric potential at the surface of a sphere of radius R is constant, i.e., V(R,0) = k, where k + 0. Very far away from the sphere (r >> R) the electric potential is V(r,0) = kr cos(0). Find the electric potential outside the sphere, remember to check that your answer matches the boundary conditions (1 point).
Charge is spread uniformly over the surface of a sphere of radius R. The potential at...
Charge is spread uniformly over the surface of a sphere of radius R. The potential at the sphere's center is V. Find an expression for the net charge Q on the sphere. Express your answer in terms of the variables R, V, and the Coulomb's constant k.
(a) A sphere with radius R rotates with constant angular velocity . A uniform charge distribution...
(a) A sphere with radius R rotates with constant angular velocity . A uniform charge distribution is fixed on the surface. The total charge is q. Calculate the current density in this scenario where . Show how the E-field is calculated using Gauss' Law and the direction (in spherical coordinates) of the current density. We were unable to transcribe this imageWe were unable to transcribe this image7 =
Problem 4 A long teflon rod (which is a dielectric cylinder) of radius a has a...
Problem 4 A long teflon rod (which is a dielectric cylinder) of radius a has a permanent polarization set in it of P (s, φ, z-ksi where k is a constant, φ is the cylindrical azimuthal angle, and s is the usual cylindrical radius and s is the cylindrical radial unit vector. Neglect the ends of the rod, it can be considered to be infinite. a) Calculate the bound charges ơb and A-(the bound charge on the surface and in...
A sphere of radius R has total charge Q. The volume charge density (C/m3) within the...
A sphere of radius R has total charge Q. The volume charge density (C/m3) within the sphere is ρ(r)=C/r2, where C is a constant to be determined. The charge within a small volume dV is dq=ρdV. The integral of ρdV over the entire volume of the sphere is the total charge Q. Use this fact to determine the constant C in terms of Q and R. Hint: Let dV be a spherical shell of radius r and thickness dr. What...
2. A sphere of radius R has the diclectric constant e. The net charge on the sphere is zero but it has the polarization P-krf (C/n2) in spherical coordinates (k is a constant with the appropriate units) a) (12 points) Calculate the bound charge density ps(C/m3) and the surface bound charge density ơs(C/m2). b) (15 points) Calculate the E-field for R and for R. Use Coulomb's law with the net bound charge density (volume and surface) as oded. Which component(s)...
Pleasee I need the best answer!
A point charge q is placed in the center of a solid dielectric sphere of radius R and permittivity e constant. Assume that the dielectric material of the sphere is linear and that the point charge in the center of the sphere is the only free charge a Determine the electrical displacement inside and outside the sphere. b. Determine the electric field inside and outside the sphere c. Determine the polarization vector using (1)...
(This is based on Wangsness, Problem 10-8.) A sphere of radius a has a permanent f. (a) Find the bound charge densities in the volume and on the surface, 1. r and show that the total bound charge is zero as expected. (b) Find E everywhere, outside and inside the sphere, and verify that the normal and tangential components of E obey the expected boundary conditions at r = a. (c) Find ) everywhere, outside and inside, making sure it...
A homogeneous dielectric sphere, of radius a and relative permittivity Er, is situated in air. There is a free volume charge density ρ(r)-Po r/a (0 a) throughout the sphere volume, where r is the distance from the sphere center (spherical radial coordinate) and po is a constant. (a) Determine the electric displacement vector D for 0 r 〈 00, (b) what is the electric field inside the sphere (0 r a)? (c) What is the electric field outside the sphere...
6. The electric potential at the surface of a sphere of radius R is constant, i.e., V(R,0) = k, where k + 0. Very far away from the sphere (r >> R) the electric potential is V(r,0) = kr cos(0). Find the electric potential outside the sphere, remember to check that your answer matches the boundary conditions (1 point).
Problem 4 A long teflon rod (which is a dielectric cylinder) of radius a has a permanent polarization set in it of P (s, φ, z-ksi where k is a constant, φ is the cylindrical azimuthal angle, and s is the usual cylindrical radius and s is the cylindrical radial unit vector. Neglect the ends of the rod, it can be considered to be infinite. a) Calculate the bound charges ơb and A-(the bound charge on the surface and in...
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