An electron is moving in a uniform 0.25-T magnetic field; its velocity components parallel and perpendicular to
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An electron is moving in a uniform 0.25-T magnetic field; its velocity components parallel and perpendicular to the field are both 3.1 Mm/s.
(a) What’s the radius of the electron’s spiral path?
(b) How far does it move along the field direction in the time it takes to complete a full orbit about the field?
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