Recent content by sarahdee

But won't that leave me with insufficient info? because I then have to calculate a with (f=ma), using the f=eq formula. But i will require the time that it is in the field to know it's final speed

I just edited my original post, to show how I worked it out before.

Homework Statement An electron, initially at rest, is accelerated through a potential diff of 15.0 kv. It is then allowed to circulate at right angles to a uniform magnetic field of strength 2.35 T. Calculate the electrons final speed before entering the magnetic field. Homework...