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Wireless Communication
This rapidly growing segment of the communication industry has the potential of providing high-speed high-quality information exchange between portable devices. Wireless communication enables several applications including multimedia Internet-enabled cell phones, automated highway systems, smart homes and appliances and videoconferencing, among others.
4,616 Questions
Would AC or DC be better to use when charging a mobile phone to make a call?
Answer: DC.
Explanation:
A mobile phone is powered by a battery. A battery stores electric charge. When wires connect the two terminals ['+' terminal and '-' terminal], then a current will flow through the wire from the '+' terminal to the '-' terminal. The electric circuits that operate the cell phone (and any other electronic device) require electric current to operate.
In order to store electric charge in the battery you must apply DC current to the battery.
AC means 'alternating current', which means that half the time the current flows in one direction along the wire that carries the AC, while the current flows in the opposite direction the other half of the time. One cycle of the AC is the total time for the current to flow in both directions. If you tried to charge a battery with AC, during each half of the cycle the current would undo the charging that the previous half-cycle had provided.
There are devices that can convert AC into DC. (They are called converters, or rectifiers.) For a device like a cell phone you would plug the converter into the AC electric outlet, and the converter would produce DC coming out of a cable which you would plug into your cell phone to charge the battery.
The converter is a relatively simple electronic circuit. If you want to know more about it, then ask.
25August,2008
How do you flirt with somebody by texting?
i do alot of small sarcasm or teasing the other person. also lots of smileys & winkeys help.
cute teasing comments like : "oh shush! (:" or "you meanie! ;)" help alot .
pretty much, if someone sent the message to you, would it make you smile? if yes, then i think it would work.! (:
What are the uses of cell phones?
Talk, text, picture text, e-mail, internet, gps, calender, calculator, alarm clock, Reminders, music download, t.v.,camera, camcorder, It all depends on the type of phone you want.
A cell phone has practically a lot of uses. Generally, this device provides a way for ease of communication-allowing people to contact another person even if they are located in different parts of the globe. This also offers added features like built-in flashlight, calculators, and many more so a person can do a lot of things using his cell phone.
As well, depending on the kind of cell phone it can also be used as a mini-computer or as a device that helps to secure safety.
Can you turn two old cell phones into Two-Way Radios?
Not without completely altering their interior electronics ... it would be cheaper to buy the two-way radios.
What does a mobile phone connection depend on?
It depends on your phone,the cell site,the switching station, the cell site of the receiver and the receivers phone
What are the prices for a cell phone 100-600?
really it depends on the cell phone if its a sidekick its like 300$ but if its a flip its like 100$ so look at the phone u get not all prices are the same
What polarization are Cell phone signals?
They are Elliptically polarised, I'm not sure of the percentages but i'd guess roughly 75% vertical and 25% horizontal. That way you can get reception even if your handset is being held horizontally ie. if you are texting or playing a game.
How can you find your cell phone when your parents took it?
Well, first of all go to your parents and ask them to sit down.Then tell them that you "accidentally" broke your phone and ask if it can be replaced.If your parents are nice they will say yes, give you a shout at and then forgive you.If they are mean then you better be careful and think of a "white lie" so you don't get into too much trouble!
Can you have cell phones in basic?
If you are talking about Basic Training for the military then the answer is no. You cannot have anything with you that wasn't issued to you other than your spit kit (toiletries). You couldn't have personal items when I went through 31 years ago and you couldn't when my son went through one year ago.
Can you use an ATT sim card into a virgin mobile phone?
Virgin Mobile now uses sim cards and ATT and other carriers only what customers to use their phones, so the phones are locked for use only on their network. If you get an unlocked cell phone you can use it on any carrier that uses sim cards. NOTE: Tmobile and prepaid carriers don't have Iphones on the service.
What are the benefits of mobile phones?
A mobile phone offers a lot of benefits. Basically, this works by making you connected with your loved ones or people in any part of the world anytime and anywhere. This can also serve as your tool to save yourself in times of crisis as calling out for help will just be fingertips away; this is especially true if you will be using a cell phone with a built-in emergency response system such as Just5. A mobile phone can also offer you wholesome entertainment with its featured games, music, and others.
Is being really really thirsty an early sign of pregnancy?
maybe it dependes on ether A:the guy wasn't wearing a u know B:u are just sick
How do cellphone charms detect that a phone near them is being called?
they work on a frequency, stick a phone near a speaker and ring it you will here a feedback noise on the speaker just before it rings or text it for similar effect. the noise you hear is the frequency and can sometimes flash even with out being called if it picks up other frequency, these dont work for 3g frequencys on most of these devices or 2100 gsm
What is traditional communication?
traditional forms of communication are for instance mythology; storytelling; songs; proverbs; religious custom; artistic, musical, dance and theatrical elements, as well on pottery, textiles and wood art. There are own particular society, and by economical, social and religious characteristics
its really good article for <a href="http://www.contentdesire.info/2011/11/contrast-of-traditional-communication.html
">traditional communication</a>
Computers and mobile phones have made us all worse at talking to one another?
Some people might argue that computers and mobile phones have made us all worse at talking to one another. This is partly true, because it is so much easier to pick up the phone and call someone or e-mail them rather than drive miles to see them. However, computers and mobile phones are a great way of enabling people who live in different countries to keep in touch with one another, so it is not all bad.
What does cell diversity mean?
Cell diversity refers to the wide variety of cells and the differences between various cells.
Turkeys eggs are really what color?
We currently have a turkey laying eggs. She is a bronze turkey, not white. Her eggs are a very light brownish cream color. They have hundreds of irregular reddish speckles, some the size of a pen dot, all the way up to about 2mm.
WHY My garage door opens but does not close?
Check your safety sensors. Most likely they are out of balance. You should have a steady burning light on them. If not, slowly move them to the direction of the other safety sensor. That should take care of it.
What do you do if your cell phone screen is backwards a mirror image and dark?
I had this problem. It's either an app or a language selection issue. I fixed mine by taking the battery out, but it may need to be reset to factory settings, which is a pain if you have a Chinese phone as then all the settings are in Chinese. There are instructions on youtube that show what the relevant chinese words look like, or you could pop down to your local Chinese takeaway.
