Telephone Communications

What kind of radiation does a cell phone emit?
Answered by Planet Green
  • Planet Green

    Planet Green

  1. Cellular phones essentially act as two-way radios that transmit and receive radio waves. Those radio waves are made of electromagnetic radiation, a combination of electric and magnetic energy that moves at the speed of light. Electromagnetic radiation can range from extremely low-frequency radiation to very high frequencies like gamma rays. How much? A cell phone typically transmits a signal of about one watt of power, although some car phones transmit at a level of about three watts.

    More answers from Planet Green »



Still Curious?
  • How does the cell phone system tell who's who?


    Answered by HowStuffWorks

  • How has portability opened up the toll-free number industry?


    Answered by Science Channel

  • How does a TV phone work?


    Answered by Science Channel

Advertisement

What are you curious about?

Image Gallery