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Capacitor

E&M review

Subject: 
Physics
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Physics
Electromagnetism
Physical quantities
Introductory physics
Electrodynamics
Electrostatics
Magnetic field
Capacitor
Lorentz force
Maxwell's equations
magnetism
Magnetic flux

Physics C Electricity& Magnetism Review Charge Net ? charge: excess electrons Net + charge: excess ?holes? SI unit: coulomb (C) Quantum of charge: the proton charge (e) the electron charge (-e) e = 6.02 ? 10-19Coulombs Conservation of Charge The net charge in any process or reaction remains unchanged. Coulomb?s Law Calculates magnitude of force between charges Force is repulsive if charges have the same sign. Force is attractive if charges have opposite signs. F = kq1q2/r2 F: force (N) k: constant 9.0 ? 109 N m2/C2 q1, q2: charges (C) r: distance between charge centers (m) NOTE: k = 1/(4??o) where ?o = 8.85? 10-12 C2/ N m2 Multiple Forces on a Charges Ftot = ? Fi
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