Voltage (of a circuit) as defined in the NEC: n. The greatest root-mean-square(rms) (effective) difference of potential between any two conductors of the circuit concerned. Voltage as defined by Webster's: n. Electromotive force or potential difference, usually expressed in volts.
whta is puncture voltage
Electrical voltage can be changed by a transformer.
Theoretically there is no limit to the voltage of an electrical current.
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".
The Volt
Low voltage is a relative term, as there is no 'level' at which a voltage is rated 'low'. Electrical safety codes define low voltage as circuits that do not require the same protections necessary at higher voltages.
whta is puncture voltage
Electrical voltage can be changed by a transformer.
the hot wire carries the electrical voltage
The standard voltage in Brazil for electrical appliances is 127 volts.
Brazil uses a voltage of 127 volts for its electrical systems.
Iceland uses a voltage of 230 volts for its electrical system.
Israel uses a voltage of 230 volts for its electrical system.
The voltage requirements for electrical outlets in Ireland are 230 volts.
Conductivity is the inverse of resistance. Since Ohm's Law states that current is voltage divided by resistance, it also states that current is voltages times conductivity.
Mechanical and Electrical
'VA', or more correctly, V.A, is not an electrical 'term'. Rather, it is the symbol for 'volt ampere', the unit of measurement for a quantity called 'apparent power'. This is the product of the supply-voltage and load current for an a.c. load.