Recent content by berg1188

I was using it to express magnitude but I don't think it's necessary. Also, I'm supposed to integrate this with respect to dl over the length of the rail to find the magnetic field at point P by the one rail. Not exactly sure what the first step into getting this one rolling would be. I know the...

I believe I figured out my problem. I was going about things in the entirely wrong direction. I came up with: I solved this by simply solving for r using the law of cosines and plugging it into the r3 portion of Biot's Law then to solve for dl x r I used the law of sines. And just made...

Sorry, should of mentioned that it is a rail-gun problem and the distance separating the rails is 10cm and each rail is 2 meters long. Thus, current will be running through the curved portion of the wire since it represents the armature. It's a multi-step problem though so I was thinking that...

Homework Statement Express: in terms of R, L(t), l, and φ Homework Equations Law of Sines and Cosines The Attempt at a Solution I have used: c^2=a^2+b^2-2ab*cosφ which resulted in r^2=R^2+(L(t)-l)^2-2*R*(L(t)-l)*cosφ and used the law of sines to get R*sinφ=r*sinθ...