A beam of electrons of energy 2.0 keV is injected at right angles into an electric...
A beam of electrons of energy 2.0 keV is injected at right angles into an electric field of 5.0 kV/m. Calculate the linear deviation of the beam when it has travelled a distance of 10.0 cm in the field. (the answer is .63 cm)
Homework Answers
Concept - find the speed of electron using the
kinetic energy of the electron given. In horizontal direction the
electron travels a distance of 10 cm. We use this to find the
required time. In vertical direction we find the acceleration using
the electric field as shown below and use equation of kinematics to
find the vertical deviation.
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