This paper provides a:new universal method-the Right Hand Cause-Effect Rule forjudging the direction of ampere force, motional electromotive force and motional current.
To answer the question whether Lorentz force does work or not in the case of electromotive force, it is proved that Lorentz force does no work in electromotive force.
This paradox is analyzed and calculated on the specical theory of relativity and solved satisfactorily in the perspective of the relativity of simultaneity.