i've found a lot of equations and relations about solenoids where the lengh tis always much greater than the radius, but what if the radius was much greater than the length?(adsbygoogle = window.adsbygoogle || []).push({});

PS. also does anyone know an equation that could help me figure out the magnetic field strength outside a solenoid? or any equations relating to an electric motor would be helpful too.

thanx!

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

Dismiss Notice

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!

# A solenoid where radius length?

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