Hi.
I'm doing some reading on fundamentals of electricity..
DC is straightforward but AC. I have a question.
If I meter my AC outlet at home, I see 120 V from the 'hot' to ground.
If I measure the other to ground.. 0 V...
So my question is, if AC is constantly changing direction... what exactly does that mean?
Is it polarity within the 'hot' wire?
Thanks,
Regards,
David
Thank you.. I did more reading to refresh my memory.. I understand voltage now..
When th mention of direction is made (I guess) they are referring to the wave going from positive to negative.
This is occurs within 1 cycle.. and as such the polarity reverses itself. The direction is really positive to negative.
I just read about current.. and again.. they are referring to it in a 'back and forth' manner.
What are they talking about?