110-120 volts
110/220
220V @ 60 Hz
230 volts at 50 Hz
Singapore uses 230 volts at 50Hz.
The voltage in North America can be as low as 110 and as high as 125 volts. The average is about 115 to 117 volts. <><><>><> House voltage in the US is generally 120v line to neutral and 240v line to line. It is referred to as a "120/240v single phase service." Actual voltage can be as low as 110/220 or as high as 125/250.
Yes. It is 60 Hz between 110 and 120 volts on each of two bus bars with 220 to 240 volts between two bus bars.
Assuming you normal house voltage is 120 volts, sounds like something is wired wrong. If you had the house (or part of it) running on generator and then took some voltage readings, you may have damaged some of the items in the house already.
A transformer can be used, either a step-up or step-down transformer, to deliver the power at a different voltage from the normal supply voltage.
no, the electricity is produced at a power station, some distance away from the house and the voltage is transported using wires/ cables to a house and then distributed around the house using "circuits" to a wall socket,etc. hence the electricity is produced elsewhere and simply presneted at the wall socket outlet.
If you use the definition of electricity as; The supply of electric current to a house or other building for heating, lighting, or powering appliances, then any voltage will fit into this range.
The transformer provides the electricity at the right voltage for the house. In all countries it makes sense for all the houses to be fed with the same voltage, which simplifies the market for electrical applicances. Most countries use a standard voltage in the range 100-125 v or 220-240 v. The electrical energy has to be transmitted over long distances at a higher voltage unless you want to live next to a generator, so the transformer changes the voltage from a higher voltage like 6600 v to the correct voltage for the house, e.g. 230 v.
If you use the definition of electricity as; The supply of electric current to a house or other building for heating, lighting, or powering appliances, then any voltage will fit into this range.