Solving Helmholtz Coils: Diagram, Magnetic Field & Current

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MitsuShai
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Hi
I'm suppose to find the direction of the magnetic field and the current in the diagram below and I was just wondering if I did this correctly. (red is magnetic field and blue is the current)

Diagram: http://i324.photobucket.com/albums/k327/ProtoGirlEXE/100_0702.jpg


And I have a few question (that are in bold) to answer in the link below.
http://i324.photobucket.com/albums/k327/ProtoGirlEXE/100_0709.jpg

For the first question, I honesty don't know what to say about the magnetic field. Shouldn't the magnetic field be perpendicular to the plane, so it should be lying on the axis.

For the second question, I honestly thought that the magnetic field should be stronger because there are more coils but I'm not sure about this because of the statement italicized after the question.
 
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This is about magnetic fields.