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120/240 volts at 60 cycles per second ac.
It is supplied as a single phase service, split 120V-0-120V.
One hot leg is 120 volts, a second hot leg 120 volts but running at 180 degrees out of phase from the first leg, and a neutral.
Every 120 volt outlet in your home carries one leg of 120 volts plus the neutral.
If the outlet has a ground, this is for safety in case there is a fault like a short of a hot leg to the internal frame or the outer casing of the appliance, which should always be connected to the ground. If such a fault occurs, the ground wire takes a very high current which causes the circuit breaker to trip or a fuse to blow.
An appliance such as a clothes dryer in your home, that uses 240 volts, is using both hot legs. Because they are 180 degrees out of phase from each other, the combined voltage is 240 volts.
For more information see the answer to the Related Question shown below.
The voltage of a standard US power outlet is 120 volts. It is different than the 230 volts that is used in many other countries around the world such as the UK.
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What is the instrument called that can change electrical voltage?
Electrical voltage can be changed by a transformer.
What are standard voltage values?
If you are referring to domestic electrical outlets, most regions use either 110 - 120 volts or 230 - 240 volts.
Is there a theoretical limit to high voltage?
Theoretically there is no limit to the voltage of an electrical current.
Why does voltage matter?
Voltage is a measure of electrical potential. I understood voltage best when my first semester Electronics professor told the class that voltage is to an electrical circuit as water pressure is to a plumbing "circuit".
What is the unit of electrical voltage?
The Volt
Do I have 120v electrical in my home?
Yes. In the United States, standard household voltage is 120VAC @ 60Hz. If properly installed, you can also run standard devices at 220 or 240 volts AC in the US.
Which wire carries the voltage?
In an electrical circuit, the wire connected to the positive terminal of the voltage source carries the voltage. This wire is usually indicated by the color red in standard wiring practices.
What is zero voltage switching?
Zero Voltage switching is a standard used to describe electrical appliances which turn on or off only when the output voltage is Zero.
Is 230 volts connection available in US homes?
No, 230 volts connection is not typically available in US homes. The standard voltage for residential homes in the US is 120 volts.
What is the household ac electrical power mains voltage in Greece?
The standard household AC electrical power mains voltage in Greece is 230 volts, with a frequency of 50 Hz.
What is the highest voltage for lighting in a home in the US?
The highest voltage for lighting in a home in the US is typically 120 volts. This is the standard voltage used for residential lighting fixtures.
To measure the voltage in a standard household electrical socket an electrician would you what settting on a volt meter?
An electrician would use the AC voltage setting on a voltmeter to measure the voltage in a standard household electrical socket. This setting is specifically designed to measure the alternating current voltage commonly found in household electrical systems.
What does 120v mean and how does it work?
120V stands for 120 volts, which is the standard voltage used in most residential electrical systems in the United States. This voltage is supplied by the electrical utility to power household appliances, lighting, and electronics. When a device is plugged into a 120V outlet, the voltage provides the necessary electrical energy for the device to function properly.
What is the instrument called that can change electrical voltage?
Electrical voltage can be changed by a transformer.
what kind of voltage converter do I need for trip to India?
India's voltage is 230V so you need one that will convert from that to US standard.
What voltage does the power supply uses in US?
Input would be 120v at 60hz. Standard US wall power.
What is Sydney's voltage?
Sydney, Australia operates on a standard electrical voltage of 230 volts, with a frequency of 50 Hz. It is important to check the voltage requirements of your electrical devices before plugging them in to avoid damage.
