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two point charges, Q1=-25microcoulomb and Q2=+50 microcoulomb, are separated by a distance of 12 cm. the electric field at the point P is zero. how far from Q1 is P?

P -25 +50

  • physic -

    Well, E from q1 goes left, and E from Q2 goes left at P. So how exactly is it ever going to be zero between the charges if they are in the same direction?

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