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physics

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explai biot-savart,law.an electron with velocity 3*107ms1 describe a circular path in a uniform magnetic field of 0.2T,perpendicular to it.calculate the radius of path

  • physics - ,

    The magnetic field B provides the centripetal force to keep it in a circular path.

    e V B = m V^2/R

    R = mV/(eB)

    m and e are the electron mass and charge.

    You don't need the Biot Savart Law for this question. There are plenty of good explanations of it online.

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