(adsbygoogle = window.adsbygoogle || []).push({}); 1. A proton and an electron, with the same kinetic energies, enter a magnetic field and both attain circular orbits. What is the ratio of the radii of the orbits to each other?

KE = qvB = (mv^2)/r --> r = mv/qB

3. We know both q values and both m values. The B value is irrelevant. I've tried substituting arbitrary measurements for the velocity and radii of one of the particles, but that still leaves me with two variables to solve for the other particle (v and r). I have no idea what to do now...

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# Homework Help: The radii of charges moving in a magnetic field

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