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Unformatted text preview: CHARGE DENSITY (Important concept) • Usually need to convert sum/integral over charge elements into a sum/integral over spatial variables (i.e. x, y, z ) • Use concept of charge density o Linear charge density: for a uniformly charged line of length L and total charge Q , the linear charge density is L Q = λ o Surface charge density: for a uniformly charged plane of area A and total charge Q , the surface charge density is A Q = σ o Volume charge density: for a uniformly charged space of volume V and total charge Q , the volume charge density is V Q = ρ Example: Consider a uniformly rod of length L and total charge Q . Find the electric potential at a distance a along the rod axis from one end. Example: Consider a uniformly rod of length L and total charge Q . Find the electric potential at a distance a from one end along a line perpendicular to the rod....
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This note was uploaded on 03/08/2012 for the course PHYSICS 1051 taught by Professor Michaelmorrow during the Winter '12 term at Memorial University.
 Winter '12
 MichaelMorrow
 Charge, Electric Potential

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