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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > The magnetic field within cylindrical region whose cross – section is indicated starts increasing at a constant rate α tesla/sec . The graph showing the variation of induced field with distance r from the axis of cylinder is

The magnetic field within cylindrical region whose cross – section is indicated starts increasing at a constant rate α tesla/sec . The graph showing the variation of induced field with distance r from the axis of cylinder is

A straight wire of length L is bent into a semicircle. It is moved in a uniform magnetic field with speed v with diameter perpendicular to the field. The induced emf between the ends of the wire is