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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Determine the magnetic field at the centre of the current carrying wire arrangement shown in figure. The arrangement extends to infinity. ( The wires joining the successive squares are along the line passing through the centre ).

Determine the magnetic field at the centre of the current carrying wire arrangement shown in figure. The arrangement extends to infinity. ( The wires joining the successive squares are along the line passing through the centre ).

a cylinder of radius R/2 is removed as shown in figure. Current flowing in the remaining cylinder is I. Then From the cylinder of radius R magnetic field strength is