Two long straight wires piece on the plane of the paper at vertices of an equilateral triangle. They each carry 2 A, out of the paper. The magnetic field at the third vertex has a magnetic of...?(adsbygoogle = window.adsbygoogle || []).push({});

The third vertex is the top of the equilateral triangle. I don't know what equation to use to figure this one out. I know that the magnetic field is eqaul to u0*I/2*pi*r....so do I figure out the magnetic field for each of the straight wires and add together?

(The answer should be 1.7*10^-5 T.)

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Wires Magnetic field question

**Physics Forums | Science Articles, Homework Help, Discussion**