Two long parallel wires are at a distance ` 2d` apart. They carry steady equal currents flowing out of the plane of the paper , as shown. The variation of the magnetic field `B` along the line `XX` is given byA. B. C. D.

Two long parallel wires are at a distance ` 2d` apart. They carry stea

1.	Two long parallel wires are at a distance ` 2d` apart. They carry steady equal currents flowing out of the plane of the paper , as shown. The variation of the magnetic field `B` along the line `XX` is given byA. B. C. D.
Answer» Correct Answer - A The magnetic field varies inversely with the distance for a long conductor . That is, ` B prop (1)/(d)`. According to the magnitude and direction shown graph (1) is the correct one.

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Two long parallel wires are at a distance ` 2d` apart. They carry steady equal currents flowing out of the plane of the paper , as shown. The variation of the magnetic field `B` along the line `XX` is given byA. B. C. D.

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