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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A wires of length I is bent into a circular loop of radius R and loop is B. The same wire is now bent into a double loop of equal radii. If both loops carry the same current I and it is in the same direction, the magnetic field at the centre of the double loop will be

A wires of length I is bent into a circular loop of radius R and loop is B. The same wire is now bent into a double loop of equal radii. If both loops carry the same current I and it is in the same direction, the magnetic field at the centre of the double loop will be

as shown in the figure with their positions. Consider two points A and B Figure shows cross section of two large parallel metal sheets carrying electric currents along their surface. The current in each sheet is 10/πA/m along the width