The electric dipole moment for a pair of opposite charges of magnitude q is defined as the magnitude of the charge times the distance between them and the defined direction is toward the positive charge.
Physics of Cooking is an interesting site with information on how do microwaves cook food? What is the difference between convection ovens and normal ovens? What is Pyrex and how does it differ from other cookware?
A series of articles on Kinetic Energy, Potential Energy, Relativity, Work, Fossil Fuels, Nuclear, Hydroelectric, Biomass, Wind and Geothermal power. The site uses text and colour illustrations and includes a game simulating an energy crisis.
Poisson calculates electrostatic potentials by numerically solving Poisson's equation in the presence of spherical and rectangular conductors, charge densities and dielectrics.
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