A uniform magnetic field of magnitude 0.150 T is directed
Chapter 29, Problem 73(choose chapter or problem)
A uniform magnetic field of magnitude 0.150 T is directed along the positive x axis. A positron moving at a speed of 5.00 3 106 m/s enters the field along a direction that makes an angle of u 5 85.08 with the x axis (Fig. P29.73). The motion of the particle is expected to be a helix as described in Section 29.2. Calculate (a) the pitch p and (b) the radius r of the trajectory as defined in Figure P29.73.
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