In the figure, an electron accelerated from rest through potential difference V_
ID: 1600313 • Letter: I
Question
In the figure, an electron accelerated from rest through potential difference V_1 = 1.00 kV enters the gap between two parallel plates having separation d = 20.0 mm and potential difference V_2 = 100 V. The lower plate is at the lower potential. Neglect fringing and gravity, and assume that the electron's velocity vector is perpendicular to the electric field vector between the plates. In unit-vector notation, what uniform magnetic field allows the electron to travel in a straight line in the gap? The number of forces which act on the electron must be identified. How many forces act on the electron?Explanation / Answer
on electron two forces are acting.
1)electric force (F=Eq)
2)magnetic force(F=qVB)