Flux through a cube at an angle

  • Thread starter Thread starter nilesthebrave
  • Start date Start date
  • Tags Tags
    Angle Cube Flux
AI Thread Summary
A uniform electric field of 600 N/C is directed at an angle of 30 degrees from the +y axis and 60 degrees from the +z axis, passing through a cube with 2.0 cm sides. The electric flux for each face of the cube is calculated using the formula Φ = EAcosθ. Initially, there was confusion about how to apply the formula due to the angled field, but the problem was ultimately resolved. The user realized that the setup was not as complex as initially thought. The discussion highlights the importance of understanding electric flux in non-perpendicular scenarios.
nilesthebrave
Messages
27
Reaction score
0

Homework Statement


A uniform electric field with a magnitude of 600 N/C is shown pointing in the y-z plane, at 30 degrees from the +y axis and at 60 degrees from the +z axis. This electric field passes through a cube, with each side of length 2.0cm and oriented with faces in the +x, +y, and +z directions. For each face of the cube, calculate the electric flux, and then add these results to find the net electric flux.

Homework Equations



\Phi =EAcos \theta

The Attempt at a Solution



I started off doing the left face:
(600)(.02)^2cos60=0.12

What I'm not sure on, and I guess what I'm more questioning is, since the field is at this angle do I need to set the equation up differently? My instructor has never shown us any problem like this, nor is there one in my book. Everything is always parallel or perpendicular in the examples, so do I do anything different here?
 
Last edited:
Physics news on Phys.org
forgot to upload diagram
 

Attachments

  • cubeflux.png
    cubeflux.png
    2.7 KB · Views: 580
Disregard this, I was making it more difficult than it was. Problem solved.
 
Thread 'Collision of a bullet on a rod-string system: query'
In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
Thread 'A cylinder connected to a hanged mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
Back
Top