Thread:Ghelæ/@comment-29927902-20161001081010/@comment-47205-20161003200700

Particles with electric charge are always affected by electric fields, but are only affected by magnetic fields when they're moving. And the electric force they feel is parallel to the electric field, but the magnetic force is perpedicular to both their velocity and to the magnetic field.

For magnetic charge, swap "electric" with "magnetic".