what is the difference with 110V and 220V?

Question

why does countries like JAPAN and USA uses 120 volts
while other countries such as the PHILIPPINES uses 240 volts?

Answer 1

To make it very simple for you, America and Japan have more advanced electric infrastructures than many of the other countries in the world that use 220 and higher such as CHINA, the middle East and the UK.


110 Volts is safer for human use because it has a lower electrical potential and does not electrocute or damage people as quickly as 220 Volts will.

Countries with better technology have the best step down transformers to lower voltage and simultaneously push it across farther distances so that it can be connected to more customers.

Included below is a link that shows voltages around the world and plug differences.
100, 110 and 120 volt plugs normally are comprised of one neutral prong and one live prong.
200, 220 and 240 (shaped with 3 prongs) usually have 2 live prongs and 1 neutral.

If you take a look at the included link, you'll learn alot about all the different plug types in the world.


This other page:
http://en.wikipedia.org/wiki/Domestic_AC_power_plugs_and_sockets

will explain to you everything you could possibly need to know about voltage differences and plugs.

Keep in mind that SAFETY GUIDLINES, LAWS and REGULATIONS play a large part in determining what plug goes where and does what. We also use 220 - 240 Volt plugs for LARGE POWERFUL MACHINES such as Floor buffers, heavy duty electric fans, etc

Answer 2

both have ground wires but the differance is that 120 has a neutral wire (to complete the circuit) and one hot wire with 120 going through it. 240 has a neutral wire and two 120 volt hot wires. 120 + 120 = 10 points for best answer.

Differant countries manufacture appliances for their countries. Once you start something it's hard to change.

Answer 3

If you live in N America, your home is wired for 110/220. The power company runs two wires plus a ground (zero volts) into your home. The two wires are both 110 Volts (or 115 or 120 - doesn't matter that much). They are both AC - meaning that they go positive - negative - positive 60 times per second. But here is the trick. When one is positive, the other is negative. We say they are "out of phase". This means that the voltage difference between them is 220 V (or 230 or 240).

https://www.electrikals.com/

Answer 4

120

Answer 5

The difference is the potential electric current running through a circuit.Why some countries choose one over the other is because of different safety standards.

Answer 6

Besides the obvious doubling of the voltage, 220V will require 50% less current for the same power, so this means you can distribute the same amount of power (watts) over smaller wires and use less copper (have you seen the price of copper lately!?).

Answer 7

my country where I came from have 240v its just larger amout of volts but I dont think there is a big difference

Answer 8

becouse

americans are retards

japs bit strange

rest of the world uses 220

Answer 9

110V ?