A particle of mass m and charge q enters a uniform magnetic field B with velocity v⊥ to the field. What is the radius of its circular path?
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A particle of mass m and charge q enters a uniform magnetic field B with velocity v⊥ to the field. What is the radius of its circular path?

G1 Physics · Accepted Answer

Magnetic force provides centripetal force: |q|vB=mv²/r. Hence r=mv/(|q|B).