He also realised that varying the strength of an electric field would generate a changing magnetic field, even in empty space with no moving electric charges to speak of.
他同时认识到，变化电场强度将会产生一个变化的磁场，甚至在一个没有移动电子的空间中也是如此。
He also realised that varying the strength of an electric field would generate a changing magnetic field, even in empty space with no moving electric charges to speak of.
他同时认识到，变化电场强度将会产生一个变化的磁场，甚至在一个没有移动电子的空间中也是如此。
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