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• Wireless Communication
Applications of EM Waves
Electromagnetic Waves > Applications of EM Waves
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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
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Two cellular phones
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Electromagnetic Waves > Applications of EM Waves
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.
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Electromagnetic Waves
Two cellular phonesThe Qualcomm QCP-2700, a mid-1990s candybar style phone, and an iPhone 4S, a current production smartphone.
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Wikipedia. "Two Cell Phones." CC BY http://en.wikipedia.org/wiki/File:Two_Cell_Phones.png View on Boundless.com
Electromagnetic Waves
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Electromagnetic Waves
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
Free to share, print, make copies and changes. Get yours at www.boundless.comBoundless - LO. "Boundless." CC BY-SA 3.0 http://www.boundless.com/
Electromagnetic Waves
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
Free to share, print, make copies and changes. Get yours at www.boundless.com
Electromagnetic Waves
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
Free to share, print, make copies and changes. Get yours at www.boundless.comBoundless - LO. "Boundless." CC BY-SA 3.0 http://www.boundless.com/
Electromagnetic Waves
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
Free to share, print, make copies and changes. Get yours at www.boundless.com
Electromagnetic Waves
The most common wireless technologies use
A) magnetic fileds
B) electric fields
C) electromagnetic wireless telecommunications, such as radio
D) light and sound
Free to share, print, make copies and changes. Get yours at www.boundless.comBoundless - LO. "Boundless." CC BY-SA 3.0 http://www.boundless.com/
Electromagnetic Waves
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
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Electromagnetic Waves