A dielectric sphere of radius a has a ”frozen in” polarization given by P (r) = krrˆ in standard spherical coordinates, with the origin of the coordinate system at the center of the sphere. (A) The sphere is surrounded by a conducting shell of inner radius a and outer radius b > a. The total charge on the conducting shell is zero. Is there an induced charge on the inner and outer surfaces of the conducting shell? If so, what are the corresponding charge densities? (B) Similarly to the point above, the sphere is surrounded by a conducting shell of inner radius a and outer radius b. Now the sphere is grounded (its potential is set to zero). Is there an induced charge on the inner and outer surfaces of the conducting shell? What are the corresponding charge densities?
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A dielectric sphere of radius a has a ”frozen in” polarization given by P (r) = krrˆ in standard ...
2. Given a spherical dielectric shell (inner radius a, outer radius b, dielectric constant K) and...
2. Given a spherical dielectric shell (inner radius a, outer radius b, dielectric constant K) and a point charge Q, which is infinitely separated from the shell. Now let Q be placed at the center of the shell. Determine the change in the energy of the system (Hint: the induced charge densities σα and ơb due to the centered Q on the inner and outer surfaces are-(Q/4 a 2)(K-1)/K] and +(Q/4 b2)(K-1)/ki, respectively.)
2. Given a spherical dielectric shell (inner...
A hollow insulating spherical shell of inner radius R0 and outer radius R1 is positively charged with a charge density of p(r) = p0(1 – (r/R1)3).
A hollow insulating spherical shell of inner radius R0 and outer radius R1 is positively charged with a charge density of p(r) = p0(1 – (r/R1)3). A positive charge +Q is placed in the center of the hollow sphere and a concentric grounded conducting shell with inner radius R2 and outer radius R3 surrounds the hollow sphere. (The conducting shell was neutral before it is grounded.) (a) What is the total charge on the insulating sphere? (b) What charges are on the...
A thick spherical dielectric shell (inner radius a, outer radius b) has a "frozen-in" polarization:
A thick spherical dielectric shell (inner radius a, outer radius b) has a "frozen-in" polarization: where k is a constant. Find the electric field for: a) r< a, b) a < r <b, andc) r > b
Problem 2. A sma charged conducting sphere with 25.0 x 10-12C and radius 5 mm is...
Problem 2. A sma charged conducting sphere with 25.0 x 10-12C and radius 5 mm is placed at the centre of a spherical conducting shell of inner radius 5.00 cm and outer radius 6.00 cm. The spherical shell has zero net charge. (a) What is the electric field between the inner and outer surfaces of the spherical shell ? (b) What is the surface charge density on the inner surface of the shell? (c) What is the surface charge density...
Problem 2. A small charged conducting sphere with q25.0 x 10-12C and radius 5 mm is...
Problem 2. A small charged conducting sphere with q25.0 x 10-12C and radius 5 mm is placed at the centre of a spherical conducting shell of inner radius 5.00 cm and outer radius 6.00 cm. The spherical shell has zero net charge. (a) What is the electric field between the inner and outer surfaces of the spherical shell? b) What is the surface charge density on the inner surface of the shell? (c) What is the surface charge density on...
A small charged conducting sphere with q = -25.0 x 10-12C and radius 5 mm is placed at the centre of a spherical conducting shell of inner radius 5.00 cm and outer radius 6.00 cm
A small charged conducting sphere with q = -25.0 x 10-12C and radius 5 mm is placed at the centre of a spherical conducting shell of inner radius 5.00 cm and outer radius 6.00 cm. The spherical shell has zero net charge. (a) What is the electric field between the inner and outer surfaces of the spherical shell? (b) What is the surface charge density on the inner surface of the shell? (c) What is the surface charge density on the outer surface...
P8. Suppose a neutral spherical conducting shell has an inner radius of 10.0 cm and an...
P8. Suppose a neutral spherical conducting shell has an inner radius of 10.0 cm and an outer radius of 15.0 cm. A charge of +4.50 μC is placed at the center of the shell. Calculate the charge densities on the inner and outer surfaces of the shell
A solid conducting sphere with radius R centered at the origin carries a net charge q....
A solid conducting sphere with radius R centered at the origin carries a net charge q. It is concentrically surrounded by a thick conducting shell with inner radius a and outer radius b. The net charge on the outer shell is zero. (a) What are the surface charge densities sigma at r = R, r = a, and r = b? b) What is the potential V of the inner sphere, assuming a reference point at infinity. Assume now the...
A solid sphere of radius (a = 3.00 cm) is concentric with a spherical conducting shell...
A solid sphere of radius (a = 3.00 cm) is concentric with a spherical conducting shell of inner radius (b = 2.00 cm) and outer radius (c = 2.40 cm) . The space between the sphere and the inner surface of the shell is empty. The sphere, made of a dielectric, has a net uniform charge of (q1 = +5 micro Coulombs). The shell has a net charge (q2 = - q1) . 1) What is the magnitude of the...
In the figure the sphere of radius R is solid and non-conductive and has a uniform...
In the figure the sphere of radius R is solid and non-conductive and has a uniform charge volumetric distribution p0. A spherical shell with inner radius 2R and outer radius 3R is concentric with the sphere and unloaded. Find, in terms of p0 and R: a) the value of the electric charge in the sphere, b) the magnitude of the electric field at a radial distance r - 2.5R, c) the value of the surface charge density induced in the...
2. Given a spherical dielectric shell (inner radius a, outer radius b, dielectric constant K) and a point charge Q, which is infinitely separated from the shell. Now let Q be placed at the center of the shell. Determine the change in the energy of the system (Hint: the induced charge densities σα and ơb due to the centered Q on the inner and outer surfaces are-(Q/4 a 2)(K-1)/K] and +(Q/4 b2)(K-1)/ki, respectively.)
2. Given a spherical dielectric shell (inner...
Problem 2. A sma charged conducting sphere with 25.0 x 10-12C and radius 5 mm is placed at the centre of a spherical conducting shell of inner radius 5.00 cm and outer radius 6.00 cm. The spherical shell has zero net charge. (a) What is the electric field between the inner and outer surfaces of the spherical shell ? (b) What is the surface charge density on the inner surface of the shell? (c) What is the surface charge density...
Problem 2. A small charged conducting sphere with q25.0 x 10-12C and radius 5 mm is placed at the centre of a spherical conducting shell of inner radius 5.00 cm and outer radius 6.00 cm. The spherical shell has zero net charge. (a) What is the electric field between the inner and outer surfaces of the spherical shell? b) What is the surface charge density on the inner surface of the shell? (c) What is the surface charge density on...
P8. Suppose a neutral spherical conducting shell has an inner radius of 10.0 cm and an outer radius of 15.0 cm. A charge of +4.50 μC is placed at the center of the shell. Calculate the charge densities on the inner and outer surfaces of the shell
A solid conducting sphere with radius R centered at the origin carries a net charge q. It is concentrically surrounded by a thick conducting shell with inner radius a and outer radius b. The net charge on the outer shell is zero. (a) What are the surface charge densities sigma at r = R, r = a, and r = b? b) What is the potential V of the inner sphere, assuming a reference point at infinity. Assume now the...
In the figure the sphere of radius R is solid and non-conductive and has a uniform charge volumetric distribution p0. A spherical shell with inner radius 2R and outer radius 3R is concentric with the sphere and unloaded. Find, in terms of p0 and R: a) the value of the electric charge in the sphere, b) the magnitude of the electric field at a radial distance r - 2.5R, c) the value of the surface charge density induced in the...
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