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The green point is a charge q lying inside the sphere at a distance p from the origin, the red point is the image of that point, having charge −qR/p, lying outside the sphere at a distance of R 2 /p from the origin. The potential produced by the two charges is zero on the surface of the sphere.
A point particle, ideal particle[ 1] or point-like particle (often spelled pointlike particle) is an idealization of particles heavily used in physics. Its defining feature is that it lacks spatial extension; being dimensionless, it does not take up space. [ 2] A point particle is an appropriate representation of any object whenever its size ...
Price discrimination is a microeconomic pricing strategy where identical or largely similar goods or services are sold at different prices by the same provider in different market segments. [ 1][ 2][ 3] Price discrimination is distinguished from product differentiation by the more substantial difference in production cost for the differently ...
A surface charge is an electric charge present on a two-dimensional surface. These electric charges are constrained on this 2-D surface, and surface charge density, measured in coulombs per square meter (C•m −2 ), is used to describe the charge distribution on the surface. The electric potential is continuous across a surface charge and the ...
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1. Caprese Sub. Everybody likes a caprese salad, of course, but there's an easy way to level it up into an elite meatless lunch. The secret, as with so many sandwiches, is in the sauce and the ...
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