Question

A change particle enter at 30 degree to the magnetic field its path will be

Answer 1

Answer:

Since the particle enters the magnetic field at an angle, it experiences a force which keeps on changing. This force which keeps on changing depends on the Sin Component of the velocity and hence move along the Cos Component.

Force = q ( v × B ) = qvB Sin Ф

Therefore the path thus moves in circles as well as exhibits translatory motion causing a helical path.