Different plugs are designed so that you can't plug an appliance into the wrong voltage. A dryer is usually 220-240 Volts and your standard outlet is 110-120 Volts. You can't do what you suggest.
If you are talking about the standard cigarette lighter socket in an automobile, you can only use devices that can run on 12 volts DC ((most modern cars) within the rated AMP load capacity. A...
Not only can you- it is highly recommended!! The new TV's out there cost in the $1000's of dollars. One would be a fool to connect them directly to a wall outlet where they are subject to voltage...