Question

what is vacuum and electromagnetic

Answer 1

Electromagnetic waves are waves which can travel through the vacuum of outer space. Mechanical waves, unlike electromagnetic waves, require the presence of a material medium in order to transport their energy from one location to another. ... Electromagnetic waves are created by the vibration of an electric charge.

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Answer 2

vaccum is the free space out side the earth. where nothing is present . electromagnet is the force which created by current carrying conductor