The potential for someone to come along later on and get the wires mixed up causing damage to electrical appliances or lights.
The potential difference of 120 volts and 12 volts is 108 volts.
On three phase 208 volts one leg does not have the potential of 208 volts. It takes two legs to provide the 208 volts. The potential is across AB, BC and CA. Voltage to the grounded neutral A-N, B-N and C-N will produce a potential of 120 volts. In a wye configured secondary three phase four wire you have the potential of 120/208 volts.
Seeing that the question comes from North America the most common duplex receptacle has 110 - 120 volts potential to ground. The second most common potential difference is 220 - 240 volts. These voltages are obtained from a 120/240 volt system common to home connections from the local utility companies.
When the neutral is connected to the ground they are at the same potential which is zero volts. If the neutral gets disconnected from the ground then a potential of 120 volts will be measured from the open neutral to ground. This voltage is being measured from the neutral side of the load that is on the circuit. because they are actually the same cable at sub station, but split by the time they come to the board, long answer involved but that's the jist of it!
your outlets work on AC current(alternating) meaning it cycles from -120 volts to +120 volts 60 times a second.... there are two phases in your house at 180degrees of electrical separation(meaning that while one phase is +120 the other is at -120, +90 -90.. etc etc assuming they are phased properly. so.... from -120 to 0(120 volts of difference in potential) then from 0 to +120(120v diff in potential) you get 240 volts for your stove. Im sorry i did this explanation with Canadian voltages and not American(110 vs 120 and 220 vs 240)
50% of 120 volts = 50% * 120 = 0.5 * 120 = 60 volts
6 amps.
150 / 120 = 1.251.25 x 100 = 125answer:125%150 volts is 125 percent of 120 volts.
America 120 volts 60 Hertz, Australia 240 volts 50 Hertz.
America 120 volts 60 Hertz, Australia 240 volts 50 Hertz.
It is simply a product of standardization.
voltage is the PUSH on electrons seriously 120 volts is the difference of 240...Simply said 240 volts is 2 times as strong as 120 volts.