Question

A particle with a charge of 5.5 x10-8C charge is fixed at the origin. A particle with a charge of"2.3 x10-8C charge is moved from x= 3.5 cm on the xaxis to y= 3.5 cm on the yaxis. The change in the potential energy of the two-charge system is:
A) 3.2 x10-4J
B) -3.2 x10-4J
C) 9.3 x10-3J
D) -9.3 x10-3J
E) 0 J

Answer

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