Voltage does not come out of an average home outlet under normal circumstances.
In North America the common potential voltage is 120 volts and is always at the receptacle as long as the circuit is energized. When an electrical device is plugged into the receptacle, through the device's connected cord, this brings the potential supply voltage to the electrical device.
When the device is turned on a current (amperage) will flow, governed by the resistance of the device. If it is a lamp, it will become bright. If it is a radio you will hear sounds.
When you unplug the electrical device from the receptacle, the device will stop operating but the voltage potential will still remain on the "hot" side of the receptacle's blade contact point.
A duplex outlet is 115vac.
In the US a general purpose receptacle outlet would be 120 volts; England 240 volts, France 115 volts, Libya 127 volts, Okinawa 100 volts, Tanzania 230 volts . . .; all depends on where your house is.
All over Europe we got 230 volts AC and 50 Hz. That is where Germany is situated.
An outlet with too many volts in it or a short.
A standard two prong outlet in the US carries 110 volts. Actual voltage in your area may vary from below 100 to 140 volts, but these extremes are unusual. Most of the rest of the Americas (North and South) uses the same standard. In Europe, the standard voltage in a "two prong outlet" is 220 to 240 volts. In the US, this voltage is reserved almost exclusively for use by stoves and ovens in the home.
A dryer outlet typically has a voltage of 240 volts. When working with a dryer outlet, it is important to turn off the power at the circuit breaker, use insulated tools, wear protective gear such as gloves and goggles, and avoid touching any exposed wires to prevent electric shock.
Batteries come with different voltages.
In Canada and the United States, wall outlet voltage is standardized at 110 to 120 volts (anywhere in that range is considered "OK"). In Europe - most of the rest of the world, actually - it is standardized at 220 volts.
In the UK, 230-240 volts.AnswerFor the UK, the legal requirement is 230 V (-6%/+10%). Incidentally, volts don't 'come out' of a socket!!!
My understanding is that it takes about 20,000 volts to arc between the two parts of the spark plug and most automotive coil put out 20,000-50,000 volts.
In the USA it is either 120/208 or 120/240 depending on your local unility company
how many amps flow thruogh a 2400 watt appliance plugged into a 120 volt outlet