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From which direction (left or right) would a proton need to enter in order to pass through the
velocity selector below?
If the magnetic field produced is 2.67 × 10-5 T and it is possible to shoot protons travelling
2.0% of the speed of light through the filter, what is the required strength of the electric field?
d = 2.5 cm
Ox x x
X x X
x x x
x x X
X x X
X X

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