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The Magnetic Field at Point P, Due to the Current

Question 47

Multiple Choice

The magnetic field at point P, due to the current in the very long wire, varies with distance R according to A) R<sup>2 </sup> B) R<sup>-3 </sup> C) R<sup>-2 </sup> D) R<sup>3 </sup> E) R<sup>-1 </sup> The magnetic field at point P, due to the current in the very long wire, varies with distance R according to


A) R2
B) R-3
C) R-2
D) R3
E) R-1

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