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Two balls with charges 5muC" and "10muC ...

Two balls with charges `5muC" and "10muC` are at a distance between them to 0.5 m, the amount of work to be performed is

A

45 J

B

`0.45xx10^(-6)J`

C

`1.2xx10^(-4)J`

D

0.45 J

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