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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A copper rod of length 1.0 m is lying on a frictionless table. Each end of the rod is attached to a fixed wire by an unstretched spring that has a spring constant of k = 50 N/m. A magnetic field with a strength of 0.20 T is oriented perpendicular to the surface of the table.

A copper rod of length 1.0 m is lying on a frictionless table. Each end of the rod is attached to a fixed wire by an unstretched spring that has a spring constant of k = 50 N/m. A magnetic field with a strength of 0.20 T is oriented perpendicular to the surface of the table.

A loop of wire has the shape of a right triangle (see the drawing) and carries a current of I = 5.0 A. A uniform magnetic field is directed parallel to side AB and has a magnitude of 2.0 T.