The region between x = 0 and x = L is filled with uniform steady magnetic field B0k. A

particle of mass m, positive charge q and velocity V0i travels along x-axis and enters the

region of the magnetic field.

Neglect the gravity throughout the question.

(a) Find the value of L is fthe particle emerges from the region of magnetic field with its

final velocity at an angle 300 to its initial velocity.

(b) Find the final velocity of the particle and the time spent by it in the magnetic field, if the

magnetic field now expands upto 2.1 L.

yashasvi

11 Years agoGrade 12