Question

In the diagram below, the two charges q1 = +q and q2 = −2q are fixed...

In the diagram below, the two charges q1 = +q and q2 = −2q are fixed in place. The distance between them is d = 3.87 m. Find the distance x of the point A on the horizontal line where the net electric potential due to the two charges is zero.
_____ m

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