An engineer at the company you are working for hat jut i reported finding an unusual electromagnetic wave. this wave consists only of an electric field, with no magnetic field accompanying it. you are certain that the engineer b mistaken becausea.an electromagnetic wave must have a magnetic field that changes with time to produce its electric field.b.electromagnetic waves always contain huh electric charges and magnetic poles, and magnetic poles arc accompanied by magnetic fields.c.electromagnetic waves con tarn moving electric charges and charges produce magnetic fields when they move.d.while waves consisting only of electric fields arc common and travels indefinitely through space, they are known as "electric waves." not "electromagnetic waves.
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Ответ:
I would think the answer is c.