What is electromagnetic energy?
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Q:

What is electromagnetic energy?

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Quick Answer

Electromagnetic energy is a form of energy that can be reflected or emitted from objects through electrical or magnetic waves traveling through space. Electromagnetic energy comes in many examples including gamma rays, X-rays, ultraviolet radiation, visible light, microwaves, radio waves and infrared radiation.

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Full Answer

The electromagnetic spectrum is the range of all types of electromagnetic radiation (electromagnetic radiation being a type of electromagnetic energy). Electromagnetic radiation is a kind of energy that travels and spreads outward as it goes, such as the lamp sending visible light in a person's home or the radio waves coming from the radio station. People encounter electromagnetic spectrum energy all the time.

Radio electromagnetic energy can be seen not only in the radio waves captured and emitted by radio stations, but also in the radio waves emitted by gases in space and stars in space. The microwave radiation cooks popcorn and is also used by astronomers to discover the structures of nearby galaxies. Infrared energy can be seen through night vision goggles and in space it helps astronomers map the dust found between the stars. Visible light is an energy that humans can detect on their own with their naked eye. Light bulbs, stars and fireflies all emit visible light. Ultraviolet radiation is emitted by the sun and is what gives humans skin burns or tans.

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    What is electromagnetic radiation?

    A:

    According to the Encyclopedia Britannica, in terms of classical theory, electromagnetic radiation refers to energy that flows at the universal speed of light via free space or a material medium in the form of electric and magnetic fields that comprise electromagnetic waves, such as radio waves, gamma rays and visible light. Electromagnetic waves are characterized by their intensity and the frequency of the electric and magnetic field's time variation.

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    What is the electromagnetic theory?

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    The electromagnetic theory is a united theory of electromagnetism established by James Clerk Maxwell. This theory primarily discusses the relationships between electric field and magnetic field based from previous observations and experiments related to electricity, magnetism and optics combined.

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    Electromagnetic interference refers to any type of disturbance that affects electrical circuits of electronic devices. Sources of interference can either be man-made or natural. Any object that carries rapidly changing electrical currents can serve as the source of EMI.

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    What are the three laws of electric charges?

    A:

    The three laws of electric charges are that like charges repel, unlike charges attract and that charged objects can be attracted to neutral objects. This means that two objects with the same charge push away from each other, while two objects with opposite charges pull towards each other.

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