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PHY2061 R. D. Field Department of Physics chp32_2.doc University of Florida The Magnetic Force The Force on Charged Particle in a Magnetic Field: The magnetic force an a charged particle q in a magnetic field B is given by r r r Fq v B B =× . The magnitude of the magnetic force is F B = qvB sin θ and B = F B /(qv sin θ ) is the definition of the magnetic field. ( The units for B are Tesla, T, where 1 T = 1 N/(C m/s) ). The magnetic force an infinitesimal charged particle dq in a magnetic field B is given by dF dqv B B r r r . The Force on Wire Carrying a Current in a Magnetic Field:
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