• pewter
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    51 year ago

    q1 and q2 can be negative. The force is the same as if they were positive because -1 x -1 = 1

    • Limitless_screaming
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      11 year ago

      In this case yes, but if q1 was -20μC, q2 was 30μC, and r was 0.5m, then using -20μC as it is would make F equal to -21.6N which is just 21.6N of attraction force between the two charges.

      • Pelicanen
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        21 year ago

        If they are oppositely charged particles, I would expect that there is a force of attraction acting on them, yes.