In a nuclear experiment a proton with kinetic energy 8.5 MeV moves in a circular path in a uniform magnetic field. If the magnetic field is B = 2.8 T what is the radius of the orbit? What energy must an alpha particle (q = +2e, m = 4.0 u) and a deuteron (q = +e, m = 2.0 u) have if they are to circulate in the same orbit? Energy of the alpha? (MeV)  Energy of the deuteron?

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Magnetic Force

A magnetic force arises when a charged particle or a current-carrying conductor is placed in a magnetic field. It is created because of the movement of the charged particles.