using the right hand rule, should B for the top wire should point out of the page and the bottom one into the page? my right hand rule is a little rusty.
also, am i using the right equations?
http://http://session.masteringphysics.com/problemAsset/1074673/3/knight_Figure_32_14.jpg
that is the diagram that accompanies the question. The 3 parts of the question ask what is the magnetic field strength at points 1, 2 and 3.
I know that B=B_1+B_2+... for each point. In order to...