Gauss’s Law Questions

Chapter 24

OQ

1, 4, 11,

CQ

6, 7, 11

Extras

  1. In which situation will the electron (A) feel the greatest attraction (Force) to the spherical conducting charge shell. Assume, in each situation shown, that point A is an equal distance from the center of the shell. (Hint, draw electric field lines and remember that electric field line density (spread), also known as electric flux density, is an indicator of electric field strength)

  1. Draw the electric fields surrounding each of the following (assume a single Q generates a “flux” of 6) (draw the field lines for the point charges as a pair)
  1. Of the two spheres of charge shown, the inner charge is a conductive sphere with a charge of -4Q, and the outer charge is a conductive sphere with a net charge of 2Q.
  1. What must be the charge on the ______of the outer shell?
  2. Inside surface (give explanation)
  1. Outside surface (give explanation)
  1. Draw the electric field lines of the system.
  1. Draw the electric field as a function of distance from center
  1. What will happen if a metal charged ball of +Q is dropped into a small hole in a metallic cylinder and allowed to touch the far wall? Assume that the charge density of the tube surface is 2x the charge density of the surface of the metal ball. Describe the relative amount of charge that will leave or enter the metal ball.
  1. We have two large sheets of equal size containing equal and opposite charges. They are held close together. How does each of the following change if they were brought twice as close together?
  2. Electric field
  3. Force of attraction
  1. Draw the electric field lines for the charge system shown. The charges listed are net charges. Explain your sketch.
  1. There is a charge at the center of the imaginary enclosure A and the half enclosure B. Based on the drawings, compare the flux through the imaginary enclosures, A and B. Compare the magnitude of the electric field at A and B. (give explanation and numerical predictions)

  1. Which enclosure would have the largest net flux through the surface?
  1. The inner sphere has a net charge of 4Q and the outer shell has an initial net charge of 2Q. If the outer shell is grounded,
  2. How will positive charge flow, how much, and why?
  3. What will be the charge on the inside and the outside of the outer shell, while grounded once equilibrium is reached?
  4. With the grounding wire removed, what will happen to the charge on the outer shell if the inner sphere could be removed

(Stop Here) From Giancoli

1

3

7 (why or why not?)

10

11

12

13

14