Electron Motion in Magnetic Fields

[Bill Myk]

I hope I'm not violating any rules with this question i believe its the correct forum

When free floating electron(s) enter a magnetic field @ a right angle, do they take a circular orbit around such field?

 

[mfb]

A fully circular orbit would have some part outside the magnetic field. The initial path is circular, but at some point something else has to happen because it cannot make a full circle.

 

[Bill Myk]

ok thank you