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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > In the figure two inifinitely long wires carry equal currents i. Each follows a 90∘ arc on the circumference of the same circle of radius R. Show that the magnetic field B→ at the center of the same as the field B a distance R below on infinite straight wire carrying a current i to the left.

In the figure two inifinitely long wires carry equal currents i. Each follows a 90∘ arc on the circumference of the same circle of radius R. Show that the magnetic field B→ at the center of the same as the field B a distance R below on infinite straight wire carrying a current i to the left.

A current is set up in a wire loop consisting of a semicircle of radius 4.00 cm a smaller concentric semicircle AB and CD are long straight conductor and two radial straight lengths carrying a current I. The magnetic field at the midpoint of BC is distance d apart