82. The work done is equal to the change in the (total) electric potential energy Uof the system, where 321312012023013444qqUrrrπε=++and the notation r13indicates the distance between q1and q3(similar definitions apply to r12 and r23). (a) We consider the difference in Uwhere initially r12 = band r23 = a, and finally r12 = aand r23 = b(r13 doesn’t change). Converting the values given in the problem to SI units
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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.