Tue January 03, 2012 By: Neha Kaura

two charges 2C and -4C are 10cm apart.calculate the work done to separate the system of charge to infinite distance?

Expert Reply
Tue January 03, 2012
electrical energy at infinite separation=0
so increase in PE=PE at this distance=q1q2/4pi?0
                                                     =9x109 x2x4x100/10
=72x1010 J
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