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Which one of the following properties of magnetic lines of force around a straight conductor is not correct?

A) The magnetic lines of force are in the form of concentric circles around a straight conducting wire

B) The plane of the magnetic lines of force is perpendicular to the straight conductor

C) If the direction of the current in the wire is reversed, the direction of magnetic lines of force is also reversed

D) The strength of the magnetic field is inversely proportional to the current passing through the conductor

E) None of these