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A charge $–2 \mu C$ is at the origin, $1 \mu C$ at $+ 7cm$ and $1 \mu C$ at $–7$ cm are placed on X - axis. The mutual potential energy of the system is

1 Answer

(B) – 0.45J
Hence B is the correct answer.
answered Jun 13, 2014 by meena.p
 

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