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Answer:

90degrees I'm pretty sure

90 degree or right angle are the electronic and the magnetic wave related in an electromagnetic signal.

what is 90 degree angle?

  1. A 90-degree angle is a right angle
  2. it is exactly half of a straight angle
  3. 90 degrees lines are also called as perpendicular lines.

hence, 90 degree is angle of electronic and the magnetic wave.

to know more refer to:

https://brainly.com/question/10713544

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