It is pointed out that the self-induction coefficient is relative to the current frequency in the actual conductor circuit, even if there is not any magnetic medium.

指出在无磁介质存在的条件下，实际导体回路的自感系数也与电流频率有关。

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The current peak phenomenon is usually shown in the electrifying self-induction experiment, but in the present documents, this phenomenon has not been perfectly explained.

通电自感演示实验中存在电流尖锋现象，但始终没有完善的理论解释。

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The current intensity of variations will produce self-induction when a closed coil moves in magnetic field. Must be attended to the contribution of the current by self-induction to total current.

闭合线圈在磁场中运动，线圈中的电流变化将产生自感，自感电流对总感应电流的贡献是不容忽视的。

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