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AP Physics 2
10.5 Electric Potential
10.3 Electric Fields
IntermediateFRQDrawing RepresentationsGraphicalMathematicalConceptual22k
A horizontal dashed line representing the x-axis. A small circle containing a plus sign is located at the left end of the axis and is labeled with text \(+Q\) above it and \(x = 0\) below it. A second small circle containing a plus sign is located further to the right on the axis and is labeled with text \(+4Q\) above it and \(x = d\) below it. No other lines, labels, or axes appear.
Figure 1. Two positive point charges on the x-axis.
Two point charges are fixed in place on the \(x\)-axis. A point charge of \(+Q\) is located at the origin (\(x = 0\)), and a point charge of \(+4Q\) is located at position \(x = d\).

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