Are the electric and magnetic fields always perpendicular to each other?

Source: (164) Alan Cooper’s answer to Are the electric and magnetic fields simultaneously perpendicular to each other? – Quora

Not always. The rate of change of either is perpendicular to the other, but there is no such general relation between the actual values. In fact for static fields it is easy to make them parallel – as, in the picture below, at the centre of a current carrying loop with positive and negative charges above and below:

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