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Two charges +Q and -9Q are placed on the x axis with x coordinates=2m and 8m respectively. Find the coordinate of a point on

Two charges +Q and -9Q are placed on the x axis with x coordinates=2m and 8m respectively. Find the coordinate of a point on the x axis between the two charges at which the potential is zero. Assuming that the potential at an infinite distance from these charges is zero. The Coulomb's law constant-k=8.99x10Nm/C.

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