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Two long parallel wires are at a distanc...

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 by

A

B

C

D

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The correct Answer is:
B

At mid-point of `AB`, magnetic field is zero.
Left of `A`, magnetic field is in downward direction.
Right of `B`, magnetic field is in upward direction.
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CP SINGH-MAGNETIC FIELD-EXERCISE
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  2. Three long wires, each carrying current i are placed as shown. The mid...

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  3. Two long parallel wires are at a distance 2d apart. They carry stead...

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  4. A staright wire of length (pi^(2)) meter is carrying a current of 2A a...

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  5. A length of wire carries a steady current I. It is bent first to form ...

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  6. Two concentric coils carry the same current in opposite directions. Th...

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  7. Two identical coils have a common centre and their planes are at right...

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  8. Two similar coils of radius R are lying concentriclaly with their pl...

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  9. Two concentric coplanar circular loops of radii r(1) and r(2) carry cu...

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  10. Two similar coils are kept mutually perpendicular such that their cent...

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  11. A current loop consists of two identical semicircular parts each of ra...

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  12. Three long wires, each carrying current i are placed parallel to each ...

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  13. Two long straight parallel wieres are 2m apart, perpendicular to the p...

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  14. The magnetic field at O is

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  15. Find the Net Magnetic field at point P due to the current I1,I2,I3.

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  16. A long wire carrying a current i is bent to form a plane angle. The ma...

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  17. Two straight long conductors AOB and COD are perpendicular to each oth...

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  18. The magnetic field at O is

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  19. The magnetic field at O is

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  20. A long straight wire along the z- axis carries a current I in the neg...

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