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Orientation of two identical small bar m...

Orientation of two identical small bar magnet of magnetic moment 'M' is as shown in figure. The magnitude of magnetic field at the point which lies on equatorial line of one magnet and axial line of another magnet is (r >> size of magnet)

A

`(µ_0M)/(4pir^3))`

B

`(sqrt3µ_0M)/(4pir^3)`

C

`(sqrt5µ_0M)/(4pir^3))`

D

`(µ_0M)/(2pir^3))`

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