Applications of-em-waves

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• Wireless Communication
Applications of EM Waves
Electromagnetic Waves > Applications of EM Waves
www.boundless.com/physics?campaign_content=book_624_section_167&campaign_term=Physics&utm_campaign=powerpoint&utm_medium=di
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• Wireless operations permit services, such as long-range communications, that are
impossible or impractical to implement with the use of wires.
• The most common wireless technologies use electromagnetic wireless
telecommunications, such as radio.
• Less common methods of achieving wireless communications include the use of
light, sound, magnetic, or electric fields.
Wireless Communication
www.boundless.com/physics/textbooks/boundless-physics-textbook/electromagnetic-waves-23/applications-of-em-waves-167/wireless-
communication-605-
Two cellular phones
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Electromagnetic Waves > Applications of EM Waves

Appendix

Key terms
• conductor A material which contains movable electric charges.
• radio wave Electromagnetic radiation having a wavelength between about .5 centimeters and 30,000 meters; used for the
broadcasting of radio and television signals.
• telecommunication The science and technology of the communication or messages over a distance, especially using electric,
electronic or electromagnetic impulses.
Electromagnetic Waves

Two cellular phones
The Qualcomm QCP-2700, a mid-1990s candybar style phone, and an iPhone 4S, a current production smartphone.
Wikipedia. "Two Cell Phones." CC BY http://en.wikipedia.org/wiki/File:Two_Cell_Phones.png View on Boundless.com

Less common methods of achieving wireless communications
include
A) use of light, sound, radio, and infra-red signals
B) use of light, sound, magnetic, and electric fields
C) use of magnetic fields, electric fields, radio, and infra-red signals
D) use of radio and infra-red signals

Boundless - LO. "Boundless." CC BY-SA 3.0 http://www.boundless.com/
Less common methods of achieving wireless communications
include
A) use of light, sound, radio, and infra-red signals
B) use of light, sound, magnetic, and electric fields
C) use of magnetic fields, electric fields, radio, and infra-red signals
D) use of radio and infra-red signals

One of the best-known examples of wireless technology is the
A) mobile (or cellular) phone
B) cable television
C) fiber-optic communication system
D) telephone network

The most common wireless technologies use
A) magnetic fileds
B) electric fields
C) electromagnetic wireless telecommunications, such as radio
D) light and sound

Attribution
• Wikipedia. "Wireless communication." CC BY-SA 3.0 http://en.wikipedia.org/wiki/Wireless_communication
• Wikipedia. "Wireless communication." CC BY-SA 3.0 http://en.wikipedia.org/wiki/Wireless_communication
• Wiktionary. "telecommunication." CC BY-SA 3.0 http://en.wiktionary.org/wiki/telecommunication
• Wiktionary. "radio wave." CC BY-SA 3.0 http://en.wiktionary.org/wiki/radio+wave
• Wikipedia. "conductor." CC BY-SA 3.0 http://en.wikipedia.org/wiki/conductor

Applications of-em-waves

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