In 1820, Oersted discovered that electric currentproducesa magnetic field.In 1831, Malchael Faraday discovered its converse effect. Explain the converse effect?

In 1820, Oersted discovered that electric currentproducesa magnetic field.In 1831, Malchael Faraday discovered its converse effect.What Is this converse effect called?

What is the effect of lorentz force on a moving particle which has its velocity perpendicular to the magnetic field?