# 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.
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## Description

#### Electric & Magnetic Properties of Light

###### TRY SOME QUICK QUESTIONS AND ANSWERS TO GET STARTED
Yes! A light wave is another name for an electromagnetic wave!
The angle between the electric and magnetic field is 90 degrees.
A light wave in a vacuum travels at 300,000 kilometres (km) per second! Or to be exact, 299,792 km/sec.
Yes! The speed of light is affected by the medium through which it propagates.

• 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.

#### Electromagnetic wave

An electromagnetic wave carries electromagnetic radiation. An electromagnetic wave is formed as electromagnetic radiation propagates from a light source, travels ...

#### Wavelength

Wavelength is a measurement from any point on the path of a wave to the same point on its next ...

Electromagnetic radiation is a type of energy more commonly simply called light. Detached from its source, it is transported by ...

#### Magnetic field

A magnetic field is created when electric current flows. The greater the current the stronger the magnetic field. Whilst an ...

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