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Solution,
Magnetic field due to a finite current carrying wire is given by the formula:

In the present case,
Thus, the magnetic field at the point P due to both the arms of the arrangement is
Ans (1)
Magnetic field due to a finite current carrying wire is given by the formula:

In the present case,
Thus, the magnetic field at the point P due to both the arms of the arrangement is
Ans (1)