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Plot a graph showing the variation of co...

Plot a graph showing the variation of coulomb force (F) versus `((1)/(r^(2)))`, where r is the distance between the two charges of each pair of charges:
`(1mu C,2mu C) and (2muC-3muC)`. Interpet the graphs obtained.

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XII BOARDS PREVIOUS YEAR-XII BOARDS-SET-I
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