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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A rectangular loop with a sliding connector of length l = 1.0 m is situated in a uniform magnetic field B = 2T perpendicular to the plane of loop. Resistance of connector is r = 2 Ω. Two resistances of 6 Ω and 3Ω are connected as shown in figure. The external force required to keep the connector moving with a constant velocity v = 2 m/s is

A rectangular loop with a sliding connector of length l = 1.0 m is situated in a uniform magnetic field B = 2T perpendicular to the plane of loop. Resistance of connector is r = 2 Ω. Two resistances of 6 Ω and 3Ω are connected as shown in figure. The external force required to keep the connector moving with a constant velocity v = 2 m/s is

A copper rod of length l is rotated about one end perpendicular to the magnetic field B with constant angular velocity omega. The induced e.m.f. between the two end is