1. Point charges A and B are separated by 3.0m. Find the distance x of point P as measured from A at which net force acting on a negation charge (-q) placed at P is zero. A- 3.0m B 4.0 μC 8.0μC X

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A: The explanation is as follows.

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Superposition Theorem

The superposition theorem is applied to linear systems. For such systems, the output from two different inputs equals the sum of the outputs from each input separately. On applying this theorem many times we get the output from any number of inputs equal to the sum of the outputs from the individual inputs separately.