The figure represents the variation of the electric potential \(V\) at a point in a region of space as a function of its position along the \(x\)-axis. A charged particle will experience the maximum force at:
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Whenever a graph of electric potential versus position is given, remember:
\[
E=-\frac{dV}{dx}.
\]
The magnitude of electric field is equal to the magnitude of the slope of the \(V\)-\(x\) graph. The steeper the graph, the larger the electric field and hence the larger the force on a charged particle.
