I have to solve many electromagnetics problems but some of them are not clear to me. For example,(adsbygoogle = window.adsbygoogle || []).push({});

For what values of the parameters is the Poynting vector time independent?

If given electric field of a uniform plane wave propagating in the positive z direction in vacuum.

E is given. So I have to find H and then just P = E x H ?

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# Homework Help: Poynting vector

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