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Whey are phones called cell phones?

Because they use cell towers to transmit calls.


How does cell phones cause radiation?

Cell phones are small radios, that both transmit and receive. When they transmit they emit radio waves, which is a kind of radiation.


Can you use cell phones from America in other countries?

yes


How are radio waves used in cell phones to transmit and receive signals for communication?

Radio waves are used in cell phones to transmit and receive signals by converting sound and data into electromagnetic waves that travel through the air to nearby cell towers. These towers then relay the signals to other cell phones or the internet, allowing for communication between devices.


What countries make cell phones?

japan


Do Blackberry phones use the same chargers as other cell phones?

No, they do not have the same charger as all other cell phones but a Blackberry charger will be similar to some cell phones.


How many cell phones in the world?

As of December 2008, there are 271,000,000 cell phones in the U.S., about 88 percent of the population.In the world, there are 4,100,000,000 cell phones in use.For a full list of countries and number of cell phones, see related links.


In which countries might one find Telstra phones?

Telstra phones are cell phones that have mobile phone plans tailored to overseas use. Specifically, Telstra phones are most often found in countries such as China, India, Hon Kong and other parts of asia.


What is OFDMA?

Orthogonal Frequency Division Multiple Access. It has something to do with the way cell phones transmit signals.


Whats the difference between the telegraph and the cell phones?

A telegraph relies on a wire to transmit a message to an individual on the receiving end. A cell phone is a wireless device that uses radio waves to transmit a signal.


Do all moms have cell phones?

not all moms have cell phones but most moms have cell phones to keep in touch with other


How are US cellular phones better than other countries cellular phones?

There are no inherent benefits in using a cell phone from the US, as identical models are available in other countries, however, it might be cheaper. Any benefits come from the carrier.