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用安培右手定则(直线电流产生磁场的判断定则)对电磁学中重要的安培螺线管定则、左手定则和右手定则进行推理,阐述了安培力与洛伦兹力及感应电流之间的逻辑关系和实质,使容易混淆的左、右手定则变得简单易懂。
Ampere’s right-hand rule (the rule of linear magnetic field) is used to reason the important ampere-solenoid rules, left-hand rule and right-hand rule in electromagnetism, and the relationship between amperage and Lorentz force and induced current The logical relationship between the essence and so easy to confuse the left and right hand rule becomes easy to understand.