I have a question about the similar images below that I found on the internet about Magnet field vs Electric field.
Electric fields should be generated by changing magnetic fields.
Question: Why is in this and similar images, the greatest value of the Magnetic field corresponds to the greatest value of the Electric field ?
I am asking, because the changing Magnetic field is absent at maximum amplitude of Magnetic field, so Electric field must be zero. And the maximum value of the Electric field must be at the point where changing of the Magnetic field is maximum, at zero value.
For me Electric field is derivative of Magnetic field.
I think Electric field must be shifted by 90 degrees relative to Magnetic field along the direction of radiation propagation.
Like generating electrical field ( voltage ) in magnet and moving copper coil: quicker movements - bigger voltage ( current ).
I found similar question, but there is no answer for me. EM Waves, Kinks, and the interaction of Electric and Magnetic Fields
Thank you in advance.