A charged particle of mass `m` and charge `q` travels on a circular path of radius `r` that is perpendicular to a magnetic field `B`. The time takeen

A charged particle of mass `m` and charge `q` travels on a circular path of radius `r` that is perpendicular to a magnetic field `B`. The time takeen
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A charged particle of mass `m` and charge `q` travels on a circular path of radius `r` that is perpendicular to a ... (2pi qB)/(m)` D. `(2pi m)/(qB)`
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