Electric & Magnetic Properties of Light
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This diagram shows that an electromagnetic wave (lightwave) results from the interaction of an electric and magnetic field.
- Electromagnetic waves are produced by the Sun as a result of thermonuclear fusion.
- The explosive force of thermonuclear fusion is caused by gravity crushing hydrogen atoms until they collapse.
- The nuclear reaction forces hydrogen atoms to combine into helium atoms and release vast amounts of electrical and magnetic energy.
- The electrical and magnetic forces form fields which interact with each other to produce a wave pattern that radiates out into space at the speed of light.
- The electromagnetic waves are of every imaginable size. The smallest (gamma rays) transport the most energy. The largest (radio waves) transport the least.
- Candles and light bulbs also involve heating materials until they give off light.
Description
Electric & Magnetic Properties of Light
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About the diagram
About the diagram
- This diagram shows that an electromagnetic wave (lightwave) results from the interaction of an electric field and a magnetic field.
- Electromagnetic waves are produced by the Sun as a result of thermonuclear fusion.
- The explosive force of thermonuclear fusion is caused by gravity crushing hydrogen atoms until they collapse.
- The nuclear reaction forces hydrogen atoms to combine into helium atoms and release vast amounts of electrical and magnetic energy.
- The electrical and magnetic forces form fields that interact with each other to produce a wave pattern that radiates out into space at the speed of light.
- The electromagnetic waves are of every imaginable size. The smallest (gamma rays) transport the most energy. The largest (radio waves) transport the least.
- Candles and light bulbs also involve heating materials until they give off light.
In the diagram:
- The magnetic wave is coloured red and yellow and forms the vertical axis.
- The electrical wave is coloured blue and violet and forms the horizontal axis.
- The direction of propagation is from left to right.
Some key terms
Electromagnetic wave
Wavelength
Electromagnetic radiation
Magnetic field
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