- #1

alannakamura

- 4

- 0

## Homework Statement

good afternoon,

I am a problem with the E cross B drift velocity calculus from a charged particle. At first, an eletron is submitted a uniform magnetic field and have a circular trajetory. After, appear a uniform eletric field that create a drift velocity. The equations are:

m dv/dt = qE + qv X B.

Taking v constant or the mean aceleration zero, arrive the equation:

v = (E X B)/B^2

But I don't understand why the v is constant or mean aceleration is zero. Anyone can help me?