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Unformatted text preview: l / 2 ) ln ( r 2 /r 1 ). 4) In spherical coordinates, E = 2 R/ ( R 2 + a 2 ) 2 R V/m. Find the poten-tial at any point, using the reference: a) V = 0 at innity. b) V = 0 at R = 0. c) V = 100 V at R = a . 5) A certain potential eld is given in spherical coordinates by V = V ( R/a ) sin . Find the total charge contained within the region R < a . 6) What is a dielectric material said to be if the direction of the electric polarization eld, P , is in the same direction of the electric eld intensity, E ? Does the electric ux density D always point in the same direction as E ? Why or why not? 1...
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This note was uploaded on 06/18/2008 for the course EE 1 taught by Professor Joshi during the Spring '08 term at UCLA.
- Spring '08