An electron follows a helical path in a uniform mag-netic field of magnitude 0.300 T. The pitch of the path is 6.00 um, and the magnitude of the magnetic force on the elec-tron is 2.00x10^-15 N. What is the electron's speed? (Answer: 65.3 km/s)

Question

anonymous · Answer

i know that E=Blv now we need to find E do have any idea?

anonymous · Answer

If that's the right formula, then I know that B=0.300 T but what are the other values?

anonymous · Answer

l is the lenght and v will be the velocity E is the eletromotive force

anonymous · Answer

Thanks for the help. I've already got this problem.