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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A part of long wire carrying a current i is bent into a circle of radius r as shown in the fig. The net magnetic field at the centre O of the circular loop is

A part of long wire carrying a current i is bent into a circle of radius r as shown in the fig. The net magnetic field at the centre O of the circular loop is

A part of long wire carrying a current i is bent into a circle of radius r as shown in the fig. The net magnetic field at the centre O of the circular loop is