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9. An electron is accelerated from rest by a potential difference of 350 V. It then...

9. An electron is accelerated from rest by a potential difference of 350 V. It then enters a uniform magnetic field of magnitude 200 mT with its velocity perpendicular to the field. Calculate the angular momentum of the electron relative to the center of the circle of rotation while circling perpendicular to the magnetic field. (me = 9.1 x 10-31 kg and e = 1.6 x 10-19 C).

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