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### 19 Cards in this Set

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 elementary charge 1.6x10^-19C Coulomb's Law Force (electric)= (kq1q2)/(r^2) Coulomb's constant 1. depends on the material between particles Ko= 9x10^9 N(m^2/C^2) t/f Fe=negative means particles attract eachother (vice versa) t Superposition of electric forces the net electric force on a charge (q) due to a collection of other charges (Q)is equal to the sum of the of the individual forces that each of the Qs alone exerts on q. Electric Fields always present, it's the existence of a source charge that can be used to make Fe (conventionally always thought from a positive test charge) Electric Field E=KQ/(r^2) t/f a negative value means that you have a negative source charge, and the vector points out f the vector points inward conductor contains charges that are free to roam around material insulator material that doesn't have free charges, electrons are tightly bound t/f conductors, but not insulators, become polarized f both conductors and insulators become polarized, but conductors are more pronounced) Electric potention the scalar representation of an electric field Equation for Electric potential Potential=(kQ)/r Equipotential graphic illustration of electric potential at a certian radius. Volt the unit of electric potential= J/C=(NxM)/C Change in electrical potential energy dPE=q(d(elecric potential)) t/f a charge experiences no change in potential energy when its final and intial positions are one the same equipotential t Work done by an electric field w= -dPE Superpositional of electric potential since potential is a scalar, the superposition is additive