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The expression for radius is similar as that for the circular motion under magnetic field (earlier case). The only change is that v is exchanged by The expressions for time period, frequency and angular velocity etc do not change as these parameters are independent of velocity. The distance between two consecutive points in x-direction determines the pitch of the helical path. This distance in x-direction is traveled by the particle with the parallel component of velocity in the time in which particle completes a revolution. If T be the time period of revolution, then pitch, p, of the helical path is :
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Example for finding the pitch distance
The expression for radius is similar as that for the circular motion under magnetic field (earlier case). The only change is that v is exchanged byv⊥ .
The expressions for time period, frequency and angular velocity etc do not change as these parameters are independent of velocity.
The distance between two consecutive points in x-direction determines the pitch of the helical path. This distance in x-direction is traveled by the particle with the parallel component of velocity in the time in which particle completes a revolution. If T be the time period of revolution, then pitch, p, of the helical path is :