Hello,
I'm a newbie in EE and just learning things. Now I'm reading about voltages and potential differences...but there's something confusing about it.
Now a voltage source has two poles, + and -. Does this mean that each pole has a signed voltage? Does negative voltage exist? What does it mean?
Second, in circuits, the negative voltage pole is earth-grounded, but how does this make it zero voltage? So the negative pole of the battery is not anymore negative? Am I misunderstanding something here?
Thanks a lot!
I'm a newbie in EE and just learning things. Now I'm reading about voltages and potential differences...but there's something confusing about it.
Now a voltage source has two poles, + and -. Does this mean that each pole has a signed voltage? Does negative voltage exist? What does it mean?
Second, in circuits, the negative voltage pole is earth-grounded, but how does this make it zero voltage? So the negative pole of the battery is not anymore negative? Am I misunderstanding something here?
Thanks a lot!