There are important differences between the electric force and magnetic force:
1) While the electric force is always parallel to the electric field, the magnetic force is perpendicular to the magnetic field.
2) The electric force is independent of particle velocity, while the magnetic force is quite dependent on particle velocity, i.e. magnetic force is proportional to the component of the particle's velocity perpendicular to the magnetic field.
3) When an electric force displaces a particle, it is performing work. Because magnetic force is always perpendicular to particle velocity, a steady magnetic field does no work when a particle is displaced. (A corrolary is that a magnetic field alone cannot alter the kinetic energy of a particle).
The WikiPremed MCAT Course is a comprehensive course in the undergraduate level general sciences. Undergraduate level physics, chemistry, organic chemistry and biology are presented by this course as a unified whole within a spiraling curriculum. Please read our policies on Privacy and Shipping & Returns. Contact Us. MCAT is a registered trademark of the Association of American Medical Colleges, which does not endorse the WikiPremed Course. WikiPremed offers the customers of our publications or our teaching services no guarantees regarding eventual performance on the MCAT.
WikiPremed is a trademark of Wisebridge Learning Systems LLC. The work of WikiPremed is published under a Creative Commons Attribution NonCommercial ShareAlike License. There are elements of work here, such as a subset of the images in the archive from WikiPedia, that originated as GNU General Public License works, so take care to follow the unique stipulations of that license in printed reproductions.