There are several different sizes of ac adaptors. There are regular home use ac adaptors and even ac adaptors that are travel sized for use in cars or hotels.
Yes, it comes with an small AC adaptor
The 3DS XL does not come with an AC adaptor. The adaptor for your country is sold seperately.
no, must be 3v
Because it powers it.
If you mean can you plug in an ac adaptor to charge the laptop while the laptop is running, yes, you can. There is no harm to the laptop whatsoever.
No way of telling, but you certainly fried the AC adaptor.
Yes an AC adaptors output can be AC. In order to change the output to AC a few components inside of the adaptor has to be removed. Pretty much all that has to be removed from the adaptor are the diodes. The gaps in the circuit then have to be bridged in order for the electricity to continue to flow to the output plug. However this can cause problems with the circuit causing the capacitors to explode. I dont recommend modifying an adaptor to output AC. Just go out and buy another one.
at Argos, Masterplug 1200mA Multi-Volt Adaptor you will need to set to 9 volts
My Toshiba Portege M700 AC adaptor lasted for 4 years.
Warm, yes. Very warm, no.
yes
No, each device has a different input and output.