You can charge your iPad either way - it doesn't need to be on or off. However, the most effective way is to charge your iPad when it's off. It will charge much faster.
It can charge on both. To charge on the wall you need to use the USB power adapter that comes bundled with the iPad
it is out
Some of them should be able to! What you're looking for is the built in USB port which you can charge an iPad off of.
In the uk it will come out on march the 16th
An iPad that you buy in the US will be just as functional as one you buy in the UK. Remember that you have to get a power plug that works in the UK.
It comes with one but you need a USB cord to use it. Yeah, it has an original iPad charger. You can use it charge your iPad in the office or home. But, if you want to charge your iPad while driving, you need an iPad car charger. You can get it from online.
yes you can :)
Take your iPad the Apple Store, They may be a Problem with the 30pin Connecter on your iPad.
No you wouldn't have to unless your case interfered with the charging of your iPad.
This will be marked on the label on the iPad and its original charger.
You can't