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A charged particle moves in a region of uniform magnetic field along a helical path (radius = 5.0 cm, pitch = 12 cm, period = 5.0 ms). What is the speed of this particle as it moves along this path?A charged particle moves in a region of uniform magnetic field along a helical path (radius = 5.0 cm, pitch = 12 cm, period = 5.0 ms). What is the speed of this particle as it moves along this path?
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Tangential velocity = 2*pi*R/T
= 2*pi*0.05/0.005
= 62.83 m/s

Norml velocity = Pitch /T
= 0.12/0.005 = 24 m/s

==> Velocity = sqrt(62.83^2+ 24^2)= 67.25 m/s
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