Lesson: Motion of a Charged Particle in Combined Electric and Magnetic FieldsPhysics
In this lesson, we will learn how to determine the forces acting on freely moving charged particles in regions that contain both electric and magnetic fields.
Sample Question Videos
An electron with a kinetic energy of 2.000 keV moves along a path that is equidistant from the surfaces of two parallel plates that are 1.00 cm apart and have a potential difference of 300 V. What is the strength of the uniform magnetic field acting parallel to the plates?
An electron moving with a velocity m/s enters a region where there is a uniform electric field and a uniform magnetic field. The magnetic field is given by T. If the electron travels through the region without being deflected, what is the electric field in the region?
The magnetic field in a cyclotron is 1.25 T, and the maximum orbital radius of the circulating protons is 0.40 m.
What is the kinetic energy of the protons when they are ejected from the cyclotron?
What is the energy of ejected protons, in MeV?
Through what potential difference would a proton have to be accelerated to acquire the kinetic energy required to eject it from the cyclotron?
What is the period of the voltage source used to accelerate the protons?