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What best describes the angle between a changing electric field and the electromagnetic wave produced by it?
always equal to a right angle
always less than a right angle
varies from parallel to perpendicular
varies from perpendicular to parallel

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cjmejiab

The correct answer here is Option A, always equal to a right angle.

Keep in mind that the phase difference that exists between the electric field and the magnetic wave is 90 °, this means that the changing electric field and the electromagnetic wave are always perpendicular and will be forming a right angle.

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