A particle with mass m and charge q has been accelerated through an electric potential difference...
A particle with mass m and charge q has been accelerated through an electric potential difference of V and is about to enter
a rectangular area with uniform magnetic field B. Your goal is to use the magnetic field to completely turn the particle around so
it’s heading in the opposite direction but also to make the field
as small (in physical space, dimension wise) as possible. What
should the minimum dimensions be (long side and short side) of
the rectangular magnetic field?
Edit: No length/width were given, that is what we are trying to find in the problem.
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A particle with mass m and charge q has been accelerated through
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