An electron and a proton move in circular orbits in a plane, Ask an Expert

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An electron and a proton move in circular orbits in a plane perpendicular to a uniform magnetic field B.

a) Obtain the ratio of the radii of their circular orbits when the electron and the proton have the same momentum.

b) Obtain the ratio of the radii of their circular orbits when the electron and the proton have the same kinetic energy.

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