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Problem 6-An electron in B field 28sq.grit otai anjog tail blot atren
Sb691 19ten
z
B
30°
A uniform 30 mT magnetic field points in the +z direction. An electron is
launched with a speed of 5.0x106 m/s at an angle of 30 degrees above the x-
y plane as shown in the diagram. Find the radius r and the pitch p of the
electron's spiral trajectory.
V 0.2
mb 01

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