The discussion revolves around calculating the magnetic field at a specific point near a current-carrying wire. The problem involves a long straight wire along the z-axis carrying an 8 A current, with a focus on determining the magnetic field produced at a given point in space.
The discussion is ongoing, with some participants emphasizing the need for the original poster to share their work for further assistance. There is a focus on clarifying the vector setup and ensuring the correct application of the relevant equations.
Participants note the urgency of the situation, as a test is approaching, which may influence the depth of the discussion and the willingness to share detailed attempts.
cmcrus02 said:Homework Statement
4. A long straight wire lies along the z-axis and carries an 8 A current in the +z direction. Find the magnetic field (magnitude and direction) produced at x=0.4 m, y=0, z=0.3 m by a 0.7 mm segment of wire centered at the origin.
Homework Equations
dB=(mu/4pi)(I[dL x r])/r^2
dB, dL, and first r are vectors
The Attempt at a Solution
cmcrus02 said:The test is in 2 hours, I've attempted it and feel the answer is right, but am not going to show all that work during this crunch time, be a sport, I think the problem is setting up the vectors correctly and doing the cross product correctly,