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处于静电平衡状态的封闭导体球壳,球壳内外的场强、电势和静电屏蔽的特点是学生学习的难点问题,它既有静电平衡状态导体的共性同时又具有自身的一些特点,本文结合实例对此难点进行分析.
The characteristics of the closed conductor spherical shell, the field strength inside and outside the spherical shell, the potential and the electrostatic shielding in the state of electrostatic equilibrium are the difficult points of the students’ learning. It not only has the commonality of the conductors in the static equilibrium state but also has some characteristics of itself. Analysis of this difficulty.