Hello,

In DC, there's negative and positive there. In AC, there's hot/live and neutral/ground there. Is hot/live is positive and neutral/ground is negative?

Please, thanks!!!

Pls. say if I am wrong and correct it, pls.

 

No, AC stands for "Alternating Current", and we call it that because it alternates, or changes direction continually.

Alternating voltages swing from zero to positive and back to zero and on to negative and then back to zero again....and so on, again and again. For the mains supply, this usually happens 50 or 60 times a second (Hz), depending on where we live.

"Live" and "neutral" are nothing to do with positive and negative in an AC system. They refer to a system joining one side of the supply to ground, generally for safety purposes.

 

No, AC stands for "Alternating Current", and we call it that because it alternates, or changes direction continually.

Alternating voltages swing from zero to positive and back to zero and on to negative and then back to zero again....and so on, again and again. For the mains supply, this usually happens 50 or 60 times a second (Hz), depending on where we live.

"Live" and "neutral" are nothing to do with positive and negative in an AC system. They refer to a system joining one side of the supply to ground, generally for safety purposes.

In the Philippines, it is 60 Hz.

Like I have thought in my mind, there is no stable negative and positive there.

 

Hot is positive and negative-- It switches back and forth (In the U.S. and the Phillipines, apparently, it switches from positive to negative and back to positive 60 times per second). Neutral is just that--Neutral. It is also known as the return. It has no charge, but only serves as a return for the current.

 

actually, neutral is as equally hot as 'hot', it just happens to be tied to ground. Dont' think for a moment that it doesn't have a potential difference to ground though.