An electron and a proton move in circular orbits in a plane perpendicular to a uniform magnetic field Barrowbold.
a) Find the ratio of the radii of their circular orbits when the electron and the proton have the same kinetic energy.
b) Find the ratio of the radii of their circular orbits when the electron and the proton have the same momentum.

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a qvB mv 2r r mvqB When same KE vproton sqrt2K... View the full answer