I'm not aware of any computer USB ports that remain powered when the PC is turned off. There are many available AC adapters for USB that would work with any electrical outlet, and these aren't very expensive.
no, not possible, unless you invent something that can make it charge
If your Bluetooth has a USB charger then it can be charged through a laptop computer.
Yes you can when you buy the phone you should get something to plug in to the computer.
The energy needed to push charge through a body is called electrical potential energy or voltage.
You'll have to charge it through your computer or laptop, you should have a cable which will connect you to it.
property of a conductor that opposes the flow of charge passing through it
The flow of electric charge through a conductor is called electric current.
To charge your ipod touch, just plug one end of the USB cable(ipod should have came with one) into your ipod and the other end into a USB port on your computer. Your computer must be turned on to charge your ipod.
Yes, see page 75 of the reference manual
no it cannot charge a computer. a phone battery does not have enough power to charge a computer. maybe it can it the phone battery has a bigger capacity than the computer (which is imposibble)
The movement of electrical charge on a material is called electric current. It is defined as the flow of electric charge through a medium, such as a wire, in response to an electric field.
Do you mean that you are connecting your laptop through a router with your main computer in your home? If so, no there is no additional charge to connect.