The magnetic field at point P due to a finite wire carrying current:
In this problem:
Φ1 = 0
Φ2 = θend
A steady current I is flowing through a straight wire of finite length.
Now find B2, the magnetic field generated by this wire at a point P located a distance x from either end of the wire. Assume that at P the angle subtended from the end of the wire to the other end is θend as shown in the diagram.
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