A beam of protons is accelerated easterly from rest through a potential difference of 3.0 kV. It
Question:
(a) What is the speed of the protons as they enter the electric field?
(b) Find the magnitude and direction relative to the velocity of the magnetic field (perpendicular to E-bar) needed so the beam passes undeflected through the plates.
(c) What happens to the protons if the magnetic field is greater than the value found in part (b)?
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a Energy conservation gives eV mv 2 Solving for v we get b To balance ...View the full answer
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