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Two infinitely long conductors carrying...

Two infinitely long conductors carrying equal currents are shaped as shown. The short sections are all of equal lengths. The point P is located symmetrically with respect to the two conductors. The magnetic filed at due to any one conductor is B. The total field at P is:

A

zero

B

B

C

2B

D

`sqrt(2)B`

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The correct Answer is:
A
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