Why some electrical loads are required Single-Phase two wires (each line is 110 VAC) connection such as Water heater and some Refrigerator, while others not ? Is it possible to hook up for example a Single-Phase two wires (each line is 110 VAC) into a Single -Phase one wire and one neutral (110 VAC) loads such as laptop charger ?
Lastly, I know that in a two wires connection, they are both 110 VAC 180 degree out of phase, but I can not understand how 220 VAC is passing inside the load at the same time when "I think" only 110 VAC is passing each time...
Lastly, I know that in a two wires connection, they are both 110 VAC 180 degree out of phase, but I can not understand how 220 VAC is passing inside the load at the same time when "I think" only 110 VAC is passing each time...