Helical Motion In Magnetic Field

Description:

If the particle enters the Magnetic field B→ at an angle θ,  then charge particle moves in helix.

As the velocity of the charge enters at an angle ‘θ’, it splits in two components – vertical component (Vsinθ) and horizontal component (Vcosθ),  hence it moves in circular path while moving forward at the same time creating a helical structure.

Time period of one revolution is given by -

Pitch of helix is given by -