0
Yes they do.
A2
Not necessarily. The most commonly used microphone element is a condenser type. The diaphragm is connected to one plate of a capacitor where the air pressure causes changes in capacitance. This does not involve the electromagnetic principle.
The earpiece or loudspeaker however, does contain a magnet.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoAn electromagnet is a general term for a temporary magnet that generates a magnetic field with a current traveling in a coil around an iron core.
Cellular phones generate electromagnetic waves for communications via different methods, although the speaker in your cellular phone is generally driven by a small electromagnet.
So yes, but with reservations.
Wiki User
∙ 11y agoYes, all speakers have magnets. But the magnets in cell phone speakers are very small, and would be practical in very few instances.
Wiki User
∙ 12y agoYes
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How are magnets used in mobile phones?
mobile phones are magnetic created by rishabh mittal in jagadhri welham boys school
Why should not magnets be kept near cell phones?
It should not be kept near mobile phones because it can erase the information on your phone, the magnet can damage the mobile phone
What is a sound sensor used for?
They are mainly used in various different kinds of Microphones. Sound sensor is also used in mobile phones.
What things are microphones used in?
Phones.
Are heart pacemakers affected by mobile phones automatic electric doors flying etc?
No--however they are affected by magnets and Xrays.
What do magnets have to do with cell phones?
just the magnets in the built in speakers
How do magnets work in phones?
Many cell phones do not have any magnets inside, and are completely unaffected when normal magnets are placed near them. However, magnets are used with other cell phones in a variety of ways. Many folding or sliding cell phones have magnets inside to hold them closed in a way that is easy to open. The speaker in the cell phone may be the kind of speaker that has a small magnet inside. As far as I know, the microphone on all cell phones is of the "electret" type that does not include any batteries; cell phones don't use the other kinds of microphones that include batteries. Many cell phones have a small motor inside that is used when the cell phone is set to "vibrate". That motor typically has a permanent magnet inside. Some cell phones, when an external magnet is placed in the middle, turn off the screen and go into a low-power state and ignore button presses. They are designed to do this so that when they are placed in a cell phone holster (most of which have a small magnet to hold them shut) and then the buttons are accidentally bumped, they don't accidentally do something that would drain the battery.
What operating software do Verizon mobile phones contain?
The largest mobile phone service in the United States is Verizon Mobile which began its operation as a merger between Bell Atlantic and GTE Wireless on April 3, 2000. Their mobile phones use the Android operating system.
Are there magnets in cordless phones?
Yes. Yes there are.
What do other countries call mobile phones?
Mobile phones, mobiles, cellular phones, cellphones
Which brands have on the market wireless microphones?
Wireless microphones are available as bluetooth sets for phones and actual microphones used for speeches, singing, and various other performances. Sennheiser, Shure, and Audio-Technica are good brands that carry such quality wireless microphones.
How much money were mobile phones in 1945?
There were no mobile phones in 1945.
