112rd rdr+≈−. Only the first two terms of each expansion were retained. Thus, Vqrdrrrdrqrdrqrdr≈+ +−+LNMOQP=+LNMOQPLNMOQP41412412022020πππεεε.113. A positive charge qis a distance r – dfrom P, another positive charge qis a distance rfrom P, and a negative charge –qis a distance r + dfrom P. Sum the individual electric potentials created at
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.