Exercise 4

Zero-field point between two charges

Theory used: Superposition principle for the electric field Field of a point charge

The charges $q_{1} = 1.0 nC$ and $q_{2} = 9.0 nC$ are at rest on the $x$ -axis, at $x = 0$ and at $x = 40 cm$ . Find the point of the $x$ -axis at which the electric field is zero.

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