This force will cause the electrons in the conductor to drift towards one end and leave the other end positively charged, thus creating a field and charge separation continuous until electric and magnetic forces balance and an equilibrium is reached very quickly, the net force on the moving conductor is zero.

can be interpreted as an induced electric field which is called the motional electric field

                                   (5.19)

If the moving conductor is a part of the closed circuit C, the generated emf around the circuit is . This emf is called the motional emf.

A classic example of motional emf is given in Additonal Solved Example No.1 .