I know the results for infinite, but how about finite? And where is the cutoff with the aproximation of infinite? Ive heard the value 10% tossed around is that right?(adsbygoogle = window.adsbygoogle || []).push({});

**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!

# How do you find the B field between finite wires?

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