Charged Particle in Uniform Electric and Magnetic Fields

charge strength

0.05

B field magnitude

8

B field direction

E field magnitude

8

E field direction

initial speed

1

initial direction

The path of a charged and otherwise free particle in uniform electric and magnetic fields depends on the charge

q

of the particle and the electric and magnetic field strengths

E

and

B

. The force exerted on the particle is



F

=q



E

+



v





B



. The red cylinder is parallel to the electric field. The blue cylinder is parallel to the magnetic field. The green cylinder points in the direction of the initial velocity

v

of the particle.