A rod of length L and electrical resistance R moves through a constant uniform magnetic field ; both the magnetic field and the direction of motion are parallel to the rod.The force that must be applied by a person to keep the rod moving with constant velocity is: A)0 B)BLv C)BLv/R D)B²L²v/R E)B²L²v²/R

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The Answer of A rod of length L and electrical resistance R moves through a constant uniform magnetic field ; both the magnetic field and the direction of motion are parallel to the rod.The force that must be applied by a person to keep the rod moving with constant velocity is: A)0 B)BLv C)BLv/R D)B²L²v/R E)B²L²v²/R

A Rod of Length L and Electrical Resistance R Moves