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AP Physics 2
12.3 Magnetism and Current-Carrying Wires
BeginnerMCQMathematicalConceptual17.5k
A long straight wire carrying current \(I\) and four surrounding points.
A long straight wire carrying current \(I\) and four surrounding points.
A long, straight wire carries a constant electric current \(I\), as shown. Points \(W\), \(X\), \(Y\), and \(Z\) are located near the wire at radial distances of \(d\), \(2d\), \(2d\), and \(4d\) from the wire, respectively. Which of the following correctly ranks the magnitude of the magnetic field \(B\) at these four points?

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