Question

A solid metal ball of 1 m radius is centered in and surrounded by a thick...

A solid metal ball of 1 m radius is centered in and surrounded by a thick walled spherical hollow metal ball whose inner wall radius is 8m and outer wall radius is 9m. Both balls are isolated and then additional charge is deposited on both. If the E field points outward at 3.5m from the center of the inner ball and has a value of 77.1 N/C.

  1. what is the surface charge density on the surface of the inner ball? Answer in pC/m^2. Three places to right of decimal.
  2. If the E field at a distance of 8 m from the center of the inner ball was 43, what would the surface charge density be on the outer surface of the outer ball in pC/m^2? whole number answer.
  3. What will the value of the E field be at a distance of 10.5m from center of inner ball? Assume surface charge density of 40 pC/m^2 on outer surface of inner sphere. Answer in N/C.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Consider an insulating sphere of radius 5 cm surrounded by a conducting sphere of inner radius...
Consider an insulating sphere of radius 5 cm surrounded by a conducting sphere of inner radius 22 cm and outer radius 25 cm. Furthermore, suppose that the electric field at a point 13 cm from the center is measured to be 1540 N/C radially inward while the electric field at a point 44 cm from the center is 90 N/C radially outward. 1. Find the charge on the insulating sphere. Answer in units of C. 2.Find the net charge on...
A hollow metal sphere has inner radius a, outer radius b, and conductivity σ. The current...
A hollow metal sphere has inner radius a, outer radius b, and conductivity σ. The current I is radially outward from the inner surface to the outer surface. Part APart complete Find an expression for the electric field strength inside the metal as a function of the radius r from the center. Express your answer in terms of the variables I, σ, r, and appropriate constants. E = Iσ(4πr2) Previous Answers Correct Part B Evaluate the electric field strength at...
A plastic sphere with a radius of 4 cm is surrounded by a concentric metal shell...
A plastic sphere with a radius of 4 cm is surrounded by a concentric metal shell of 7 cm inside radius, and 10 cm outside radius. The outer shell has a net charge of +5 Coulombs, while the plastic sphere inside has a uniformly distributed charge of -10 Coulombs. What is the electric potential relative to infinity at a distance 15 [cm] from the center of the plastic sphere i.e. outside the conducting shell, and why? 2b. What net charge...
A hollow, conducting sphere with an outer radius of 0.260 m and an inner radius of...
A hollow, conducting sphere with an outer radius of 0.260 m and an inner radius of 0.200 m has a uniform surface charge density of +6.47 × 10−6 C/m2. A charge of -0.400 μC is now introduced into the cavity inside the sphere. a)What is the new charge density on the outside of the sphere? b)Calculate the strength of the electric field just outside the sphere c)What is the electric flux through a spherical surface just inside the inner surface...
A hollow, conducting sphere with an outer radius of 0.260 m and an inner radius of...
A hollow, conducting sphere with an outer radius of 0.260 m and an inner radius of 0.200 m has a uniform surface charge density of +6.37 × 10−6 C/m2. A charge of -0.700 μC is now introduced into the cavity inside the sphere. a) What is the new charge density on the outside of the sphere? b) Calculate the strength of the electric field just outside the sphere. c) What is the electric flux through a spherical surface just inside...
A hollow metal sphere has 5cm and 10cm inner and outer radii, respectively. The surface charge...
A hollow metal sphere has 5cm and 10cm inner and outer radii, respectively. The surface charge density on the inside surface is ?150nC/m2 . The surface charge density on the exterior surface is +150nC/m2 . What is the strength of the electric field at point 12 cm from the center?
A thin-walled metal spherical shell of radius a = 8 m has a charge qa =...
A thin-walled metal spherical shell of radius a = 8 m has a charge qa = 23 C. Concentric with it is a thin-walled metal spherical shell of radius b = 7a and charge qb = 27 C. Find the electric field at points a distance r from the common center, where (a) r = 2.4 m, (b) r = 16 m, and (c) r = 84.0 m.
A thin-walled metal spherical shell of radius a = 36 m has a charge qa =...
A thin-walled metal spherical shell of radius a = 36 m has a charge qa = 11 C. Concentric with it is a thin-walled metal spherical shell of radius b = 5a and charge qb = 33 C. Find the electric field at points a distance r from the common center, where (a) r = 10.8 m, (b) r = 72 m, and (c) r = 270.0 m.
A point charge q = −4.0 ✕ 10−12 C is placed at the center of a...
A point charge q = −4.0 ✕ 10−12 C is placed at the center of a spherical conducting shell of inner radius 3.4 cm and outer radius 3.9 cm. The electric field just above the surface of the conductor is directed radially outward and has magnitude 7.5 N/C. a) What is the charge density (in C/m2) on the inner surface of the shell? b) What is the charge density (in C/m2) on the outer surface of the shell? c) What...
10. A shell of solid metal sphere of outer radius Ro = 2m and inner radius...
10. A shell of solid metal sphere of outer radius Ro = 2m and inner radius of R1 = 1m has a charge of Q1 = 4C placed on it. After the charge is placed on the sphere, a charge of Q2 = 6C is then placed at the center of the sphere. Find the electric field everywhere in the sphere. What are the charges on the inside of the sphere, and outside the sphere.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT