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Question
Three particles lie on the xaxis: particle 1, with a charge of 1 x10-8C is at x= 1 cm, particle 2, with a charge of 2x10"8C, is at x= 2 cm, and particle 3, with a charge of -3 x10-8C, is at x= 3 cm. The potential energy of this arrangement, relative to the potential energy for infinite separation, is:
A) +4.9 x10-4J
B) -4.9 x10-4J
C) +8.5 x10-4J
D) -8.5x10-4J
E) 0 J
Answer
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