Charged particle in a magnetic field

AI Thread Summary
A charged particle with a charge-to-mass ratio of 5.7 x 10^8 C/kg moves in a circular path within a magnetic field of 0.72 T. The participant initially struggles to relate the particle's velocity to the time taken for one complete revolution. They realize that the relationship between angular velocity and time (T) can be expressed as v = ω*r = (2*π /T)*r. This insight helps clarify their understanding of the problem. The discussion highlights the importance of connecting fundamental physics concepts to solve problems effectively.
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Homework Statement


A charged particle with a charge-to-mass ratio of 5.7 x 10^8 C/kg travels on a circular path that is perpendicular to a magnetic field whose strength is .72 T.
How much time does it take for the particle to make one revolution?


Homework Equations


(Magnetic)F = qvB = (Centripetal)F = (mv^2)/r


The Attempt at a Solution


I can produce an equation for the velocity of the particle using the above equation, but how would one find the time that it takes? Hmmm, I know this is probably right in front of my face, but I'm just not seeing it... time...hmm...any hints?

Thank you everyone for even trying to help me out! :biggrin:
 
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v = ω*r = (2*π /T)*r
 
Hahaha! Oh, how did I not think of that! Such a fundamental idea didn't cross my mind!
Thank you for helping out, I'll have to think clearly next time!

:approve:
 

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