在高中物理知识学习中,带电粒子在磁场中的圆周运动是学习的难点,但与此同时,其也是升学考试的必要内容。文章围绕磁场中圆周运动确定圆心半径的情景探索意义展开,通过例题形式,探索磁场中圆周运动确定圆心半径的具体情景,以帮助同学们更好地掌握此部分内容。 In the study of physics knowledge in high school, the circular movement of charged particles in magnetic fields is a difficult part of learning, but at the same time, it is also an essential part of the entrance examination. The article explores the meaning of the scene exploration to determine the radius of the circle around a circular motion in a magnetic field, and explores the specific scene of the radius of the circle of the circle in the magnetic field through examples to help students better grasp this part of the content.