Physics

posted by .

A cube of side a is placed in a uniform field E=6.50 * 10^3 N/C with edges parallel to the field lines.
a) whats the net flux through the cube?
b) what is the flux through each of its six faces?

  • Physics -

    a)Unless the cube has a charge inside, the net flux through all sides is zero, because of Gauss' Law. They should have told you if the cube had a charge inside.

    b)The situation is different if the cube is conducting or nonconducting. If there is no charge and no polarization of the cube, the flux through the two faces will be E a^2 and -Ea^2. There will be no flux thourgh the sides.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Gauss' Law!!!!!!!!!!

    Can any one help me for this problem? The cube in Figure 23-27 has edge length 1.40 m and is oriented as shown in a region of uniform electric field. Find the electric flux through the right face for the following electric fields,
  2. Physics

    A cube is located with one corner at the origin of an x, y, z, coordinate system. One of the cube's faces lies in the x, y plane, another in the y, z plane, and another in the x, z plane. In other words, the cube is in the first octant …
  3. Physics please clarify

    Posted by Mary on Monday, September 24, 2007 at 10:11pm. A cube is located with one corner at the origin of an x, y, z, coordinate system. One of the cube's faces lies in the x, y plane, another in the y, z plane, and another in the …
  4. PHYSICS

    A 14 cm diameter circular loop of wire is placed in a 0.58 T magnetic field. (a) When the plane of the loop is perpendicular to the field lines, what is the magnetic flux through the loop?
  5. Physics

    A charge of uniform volume density (40nC/m^3) fills a cube with 8cm edges. What is the net flux through the surface of the cube?
  6. Physics

    A cube has sides of length L = 0.170 m. It is placed with one corner at the origin as shown in the figure below. The electric field is not uniform but is given by = (-6.00 N/C · m)x + (2.00 N/C · m)z. (a) Find the electric flux through …
  7. physics - electric fields

    A 2.00 square meter flat surface is placed in a uniform electric field of magnitude 6.00 N/C. If the surface is oriented so that the field lines are all parallel to the surface, find the magnitude of the electric flux through this …
  8. Physics

    The figure shows a cube whose sides are all 5cm long. Over the entire left-hand side of the cube is a uniform electric field E1=7500 N/C which is entering the cube at 20 degrees below the x axis. Over the right-handed side is a uniform …
  9. Physics

    A cube of side L is place in a uniform electric field E = 3200 N/C. What is the net flux through the cube. Assume the electric field lines are parallel with the edges of the cube. Make sure you know why this is the answer. I know its …
  10. Physics

    A 20-cm-diameter circular loop of wire is placed in a 0.57-T magnetic field. Part A When the plane of the loop is perpendicular to the field lines, what is the magnetic flux through the loop?

More Similar Questions