physics

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An electron, moving with a speed, 6.8 km/s, enters a magnetic field that has a strength of 6.9 T. The magnetic force on the electron is perpendicular to the electron's velocity. Determine the radius of the resultant path of the electron.

  • physics -

    centripetal force=magnetic force

    mv^2/r=Bqv
    solve for r.

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