Magnetic Field due to finite straight wire carrying current

Magnetic Field due to finite straight wire carrying current

Magnetic Field due to finite straight wire carrying current

Consider a straight finite wire carrying current I as shown in the figure. Let the distance from the center of the wire be x. Let r be the distance from the current element dl to the point P  O  where the magnetic field is to be determined. Consider a small current element dl, thus the magnetic field due to small element is given by,

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