Showing 61 to 70 of 255 Questions
  • A point charge of 1.8pC is at the center of a cubical Gaussian surface 55 cm on edge. What is the net electric flux through the surface?

  • A point charge of 12.0 %C is placed at the center of a spherical shell of radius 22.0 cm. What is the total electric flux through? (a) The surface of the shell and (b) Any hemispherical surface of the shell? (c) Do the results depend on the radius? Explain.

  • A point charge q = 1.0 x 10-7 C is at the center of a spherical cavity of radius 3.0 cm in a chunk of metal. Use Gauss' law to find the electric field (a) 1.5 cm from the cavity center and (b) Anyplace in the metal.

  • A point charge Q = 5.00 %C is located at the center of a cube of edge L = 0.100 m. In addition, six other identical point charges having q = -1.00 %C are positioned symmetrically around Q as shown in Figure P24.17. Determine the electric flux through one face of the cube.

  • A point charge q is located at the center of a uniform ring having linear charge density A and radius a, as shown in Figure P24.6. Determine the total electric flux through a sphere centered at the point charge and having radius R, where R < a.

  • A point charge Q is located just above the center of the flat face of a hemisphere of radius R as shown in Figure P24.15. What is the electric flux? (a) Through the curved surface and (b) Through the flat face?

  • A point charge Q is located on the axis of a disk of radius R at a distance b from the plane of the disk (Fig. P24.68). Show that if one fourth of the electric flux from the charge passes through the disk, then R = 3b.

  • A point charge Q rests at the center of an uncharged thin spherical conducting shell. (See Fig 16-33). What is the electric field E as a function of r?(a) For r less than the inner radius of the shell.(b) Inside the shell, and (c) Beyond the shell?(d) Does the shell affect the field due to Q alone? Does the charge Q affect the shell?

  • A point charge q1 = 4.00 nC is located on the x-axis at x = 2.00 m, and a second point charge q2 = -6.00 nC is on the y-axis at y = 1.00 m. What is the total electric flux due to these two point charges through a spherical surface centered at the origin and with radius? (a) 0.500m, (b) 1.50m, (c) 2.50m?

  • A positive point charge is at a distance R/2 from the center of an uncharged thin conducting spherical shell of radius R. Sketch the electric field lines set up by this arrangement both inside and outside the shell.