论文部分内容阅读
问题:一个圆形匀强磁场区域,带电粒子从圆周上一点沿垂直于磁场方向射入磁场,若粒子的轨道半径与圆形磁场区域半径相同,则这些粒子将沿什么方向射出磁场?分析:如图1所示,一带电粒子以任意角从圆周上一点O沿垂直于磁场方向射入磁场,若粒子的轨道半径与圆形磁场区域半径相同时,轨道圆弧与磁场区域圆弧对应的两条半径线组成平行四边形(即四边形OO1AO2为平行四边形),带电粒子的速度方向总垂直于半径,因此带电粒子射出磁场时速度方向都平行于射入点磁场区域圆的切线(即平行于x轴),所以所有带电
Problem: a circular uniform magnetic field, the charged particles from a point on the circumference perpendicular to the direction of the magnetic field into the magnetic field, if the particle radius of the orbital radius of the same magnetic field, the particles will be in what direction the magnetic field? Analysis: As shown in Figure 1, a charged particle enters the magnetic field perpendicularly to the magnetic field at an arbitrary angle from an arbitrary point on the circumference. If the radius of the orbital radius of the particle is the same as the radius of the circular magnetic field, the orbital arc corresponds to the circular arc of the magnetic field The two radial lines form a parallelogram (that is, the quadrilateral OO1AO2 is a parallelogram). The charged particle’s velocity direction is always perpendicular to the radius. Therefore, when the charged particle exits the magnetic field, the velocity direction is parallel to the tangent of the circle of the incident point magnetic field Shaft), so all charged