Find mag field at O

Dear student,


If the loop lies in x-y plane, the direction of magnetic field will be along z axis, But as we don't have any information whether I1 is greater or less than I2 , we can't conclude, whether the magnetic field is along +ve z axis or -ve z axis.
But only if I1 = I2 , magnetic field at centre (O) will be zero.

Regards,

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0 since both side magnetic field cancel each other
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What are you looking for?