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Masterin ics. HW Secure | https://session.masteringphysics.com/myct/itemView?offsets next&assignmentProblemID-82; 123804 Ch 1 HW Electrie Potential Energy of Three Point Charges previous| 2 of 14 next Electric Potential Energy of Three Point Charges Part A Three equal point charges, each with eharge 1.00 AC, are placed at the vartices of an equilateral trianglo whose sides are of langth 0.700 Im What s the lectrie potential anegy a the system? (Take as zero the potental energy of the three charges when they are infinitely tar s-8.85 10-12for the permitivity of free spaoe. Hinta Submit My Answers Give Up 12:25 PMExplanation / Answer
The total electric potential energy of system is electric potential energy due to charges at vertices 1-2,1-3 and 2-3
Since the triangle is equilateral and the charges are also of same magnitude and sign,the total energy will be equal to 3 times the potential energy due to any one pair of charges=9*109*3*(1.6*10-6)2/0.7=0.0987 Joule