Question

In a mass spectrometer, a beam of protons enters a magnetic field. Some protons make exactly a one-quarter circular arc of radius 0.50 m. If the field is always perpendicular to the proton’s velocity,
(a) What is the field’s magnitude if exiting protons have a kinetic energy of 10 keV?
(b) How long does it take the proton to complete the quarter circle?
(c) Find the net force (magnitude) on a proton while it is in the field.


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  • CreatedAugust 29, 2015
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