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高二物理《交变流电》这一章节中,我们向学生讲授了交流输电,有学生问起直流是否好可以输电啊?直流输电和交流输电有何不同、区别?我们为何没有用直流输电呢?当学生这么问时,我们教师就应该向学生详细地说一下现实中有关交流输电和直流输电的有关知识.
In the second chapter of “secondary alternating current”, we taught students about AC power transmission. Some students asked whether DC is good for transmission. What are the differences and differences between DC transmission and AC transmission? Why do we not use DC transmission? When students ask this question, our teachers should explain to students in detail the relevant knowledge about AC transmission and DC transmission.