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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.
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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.
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.
Does a transformer provide electrical energy that is produced chemically?
No. A transformer transforms electrical energy, from one voltage to another voltage.No. A transformer transforms electrical energy, from one voltage to another voltage.No. A transformer transforms electrical energy, from one voltage to another voltage.No. A transformer transforms electrical energy, from one voltage to another voltage.
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 voltage is used in Hong Kong for electrical appliances?
Hong Kong uses the same British Standard BS 1363 (220 Volt, 50 Hertz) electrical system used in the UK.
Does a power supply receive 120 volts?
The voltage your computer's power supply receives depends mainly on the standard electrical service delivered into homes, offices and factories by the national electrical grid in your country.Just a few examples: if you live in North America, that voltage is 120 volts but, if you live in, say, Europe or Australia, that voltage is 230 volts.More detailsThe voltages a power supply was designed to use depends on how old it is. Early power supplies were designed to use only one voltage: the standard voltage of the electrical service delivered by a country's national electrical grid for use by small appliances in homes, offices and factories .Since the invention of the personal computer most standard power supplies have been designed to operate on a wide range of voltages. (Such as from 100 volts to 250 volts.)
In an IEC-320 plug which wire carries electrical voltage?
the hot wire carries the electrical voltage
What is the electrical voltage in American Samoa?
American Samoa follows the American standard 110 VAC. So, generally alomsot every product from the US would work in American Samoa.The voltage in American Samoa is 120 V @60 HZ. American Samoa uses plugs A or B or F or I. Compatible with the US and Canada. Source: voltageplugregion.com
How is different between voltage and current?
voltage = the electrical "pressure"current = the electrical "movement rate" or "flow rate"
What are standard voltage values?
If you are referring to domestic electrical outlets, most regions use either 110 - 120 volts or 230 - 240 volts.
