On the relation between Ampere force and Lorentz force;
论安培力与洛伦兹力的关系
How to produce the formula of Lorentz force;
洛伦兹力公式是怎样给出的
According to movement example,analyse the Lorentz force woking whithin Ampere force working and motional electromotive force,then draw a conclusion that Lorentz force never work to the moving charge,but played the transmission energy role.