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L is a circular loop (in y-z plane) carr...

L is a circular loop (in y-z plane) carrying an anticlockwise current. P is a point on its axis OX dl is an element of length on the loop at a point A on it. The magnetic field at P

A

due to `L` directed along `OX`

B

due to `dl` is directed along `OX`

C

due to `dl` is perpendicular to `OX`

D

due to `dl` is perpendiuclar to `AP`

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The correct Answer is:
A, D
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