A 120 V outlet is the standard residential and commercial electrical outlet for North America. When additional electrical power is needed, other outlet options are available, but typically, one or more duplex (meaning double, or two outlets) receptacle is installed in every residential and commercial room.
Ummm yes ? If your talking about a wall outlet yes you can have 120v dc but not at an outlet
No you cannot plug a 100v into a 120v outlet, it will fry whatever the product you are plugging up.
In the US on an 120v 15a outlet it's the short slot
you get an adapter
Yes, assuming the wall outlet produces 120V 60 Hz at at least 4 watts.
Yes, no problem at all.
You will burn up your appliance!!!!!
Yes. It's functionally the same.
yes ofcourse they both are the same
Don't be stupid. No.