Atoms are composed of three particles with an electric charge: electrons, protons and uncharged neutrons. Electrons have a negative charge, and protons have a positive charge. The negative charge of ...

THIS is a new and considerably enlarged edition of a book which we have previously noticed (December 21, 1893). We then declared our belief in the writer as one capable of stating with all clearness ...

Explore how to calculate the magnetic force on a current-carrying loop from a long straight wire! This tutorial breaks down the physics concepts behind magnetic fields and forces, perfect for physics ...