An electron is projected with an initial speed v0 = 1.60 * 10^6 m/s into the uniform field between two parallel plates. Assume that the field between the plates is uniform and directed vertically downward and that the field outside the plates is zero. The electron enters the field at a point midway between the plates. (a) If the electron just misses the upper plate as it emerges from the field, find the magnitude of the electric field. (b) Suppose that the electron is replaced by a proton with the same initial speed v0 . Would the proton hit one of the plates? If not, what would be the magnitude and direction of its vertical displacement as it exits the region between the plates?
1. An electron is projected with an initial speed v0 = 1.60 * 10^6 m/s into the uniform field
between two parallel plates. Assume that the field between the plates is uniform and directed
vertically downward and that the field outside the plates is zero. The electron enters the field at
a point midway between the plates. (a) If the electron just misses the upper plate as it emerges
from the field, find the magnitude of the electric field. (b) Suppose that the electron is replaced
by a proton with the same initial speed v0 . Would the proton hit one of the plates? If not, what
would be the magnitude and direction of its vertical displacement as it exits the region between
the plates?
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