全然読めないけど、誰が訳してもらえますが? A magnetic field has no effect on a stationary charged particle. The force on a particle Of charge Q moving with velocity v through a magnetic field with flux density B is 公式 The acceleration is given by NEWton’s second law , but since Eq. is a vector cross-product, the force(and,consequently,the ,the acceleration),will be directed at right Angles to both V and B . the particle will travel in a circular path with radius and angular velocity of 公式