# physics HELP

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Consider a coaxial cable with 2Amps in the center conductor coming out of the page, and 1Amp in the outer conductor going into the page. The center conductor has a radius of 1mm, the outer conductor's inner radius is 2mm, and the outer conductor's outter radius is 3mm. What is the magnitude of the magnetic field at point P which is 5mm from the cable's axis?

• physics HELP -

What was wrong with the answer I gave you earlier?

• physics HELP -

http://www.jiskha.com/display.cgi?id=1223804401 which is the same as i gave you ..

• physics HELP -

is the radius of the cable or of the axis to the point p?

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