Electromagnetism

Electromagnetism is the physics of the electromagnetic field. This is a field, encompassing all of space, composed of mutually dependent time varying electric and magnetic fields. The term "electromagnetism" comes from the fact that the electric and magnetic fields are closely intertwined, and, under most circumstances, it is impossible to consider the two separately.

Electromagnetic radiation

Light and radio waves are travelling disturbances in the electromagnetic field (i.e. electromagnetic waves.) and all optical and radio-frequency phenomena are electromagnetic in nature.

Related Topics:
Light - Radio wave - Electromagnetic wave - Optical - Radio-frequency

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