Does the Lorentz Force Law Affect Charged Particles' Speed and Direction?

[kungshoey]

2. Which of the following statements are true:
a. a charged particle moving in a constant magnetic field can not have its speed increased by that field.
b. the force on a charged particle moving in a magnetic field depends only on the magnitude of the velocity, not on its direction.
c. the force on a charged particle moving in a magnetic field is independent of the velocity.
d. the effect of a magnetic field on a charged particle is to increase its Kinetic Energy if the particle is positively charged
e. the force on a charged particle moving in a magnetic field can be in the direction of the field
f. a magnetic field leads to the constant acceleration of charged particles.

 

[physixguru]

Welcome to PF.
Show Some Work.

 

[ks_physicist]

You need to think of the Right Hand Rule and the implications to acceleration of a charged particle.

 

[cepheid]

ALL of these questions can be answered by looking at the form of the equation that describes the force on a charged particle due to a magnetic field. It is called the Lorentz force law, and it should be in your book or in your notes.