(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A cube of edge length 0.05m is positioned as shown in the figure below. A uniform magnetic field given by B = (5i+ 3j+ 2k) T exists throughout the region.

a) Calculate the flux through the shaded face.

2. Relevant equations

[itex]\phi[/itex] = B.A cos [itex]\theta[/itex]

3. The attempt at a solution

The area would simply be 0.0025m^2

I'm having trouble understanding how to get the angle and also how to interpret the given magnitude of the magnetic field, it's a vector quantity.

I thought at first the way to get the angle was to assume that the surface of the cube could be considered a vector as well, that way it would only have the j component since it's only got a direction in the y-axis.

Then using the formula for the angle between two vectors, I got 53.5 degrees, though I'm not too sure how to use the given magnetic field value.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Calculating magnetic flux

**Physics Forums | Science Articles, Homework Help, Discussion**