当然一个变化的磁场会产生电场，就像法拉第做的那样。
A changing magnetic field, of course, gives rise to an electric field, as had been established by Faraday.
它们表明，变化的电荷会产生磁场，变化的磁场同样能够产生电场。
They state that a moving electric charge will generate a magnetic field while a shifting magnetic field similarly creates an electric field.
这和以前不同了，如果存在一个变化的磁场,穿过金属线圈,线圈内就会产生一个电压。
Well,a small change in plans.If you actually have a varying magnetic field that passes through that wire then that will actually generate voltage in it.
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