t*********3 发帖数: 13 | 1 对此答案补充一点:在充电过程中还有辐射能量的损耗,这点很容易用实验证明,当你
合上开关时,可以听到置于附近的收音机的咔的一声响,说明有电磁波辐射了。在计算
时可以用以等效的电阻代替,与电路的实际电阻合在一起计算。如文献https://6002x.
mitx.mit.edu/
wiki/view/EnergyandPower
结论是能量的损失包含了电阻上的损失与 辐射损失。
发信人: nobrain (nobrain), 信区: Physics
标 题: Re: 一个困扰了很久的电路里能量守恒的问题
发信站: BBS 未名空间站 (Fri Dec 7 12:53:21 2012, 美东)
check out this webpage,you will find your answer https://6002x.mitx.mit.edu/
wiki/view/EnergyandPower |
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t****g 发帖数: 35582 | 3 其实葛大的校园开放,想上啥课直接溜达进去听,没人管你。 |
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b*****e 发帖数: 14299 | 8 靠,看了一下第一节课的讲义,虽然都熟悉,但是一点精神都提不起来啊,真是年纪大
了,学不进去了。 |
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w*******y 发帖数: 60932 | 11 MIT is offering a free course online. You will NOT get actual credit for it,
but upon successful completion, you will get an electronic certificate. It
is a bit different from the free course material that they post in that you
will actually be taking tests, partake in discussions, etc.
For more info and to enroll, go here: Link:
https://6002x.mitx.mit.edu/
Basic calculus and linear algebra are required. You're also required to have
taken an AP level physics course in electricity and magnetism.
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