A bus strip usually contains two columns

[Pranav Jha]

What does the term "ground" mean in an ELECTRONIC circuit?
A bus strip usually contains two columns: one for GROUND and one for a supply voltage. What does ground mean in this context and how do we ground a circuit while using a breadboard?

 

[yungman]

What does the term "ground" mean in an ELECTRONIC circuit?
A bus strip usually contains two columns: one for GROUND and one for a supply voltage. What does ground mean in this context and how do we ground a circuit while using a breadboard?

Ground in this case is the return path of the current.

Do you know you ask one of the most difficult question in electronics. The one issue that cause a big percentage of the problems. I truly do not know where to even start. I sure hope professors in school can put more emphysis on grounding. BECAUSE if you truly master grounding, most other circuits are pretty easy. As speed of circuits go up, this become more and more important issue. They even have a special kind of engineer called "Signal Integrity" engineer that do nothing but working on this very issue.

If you want to have your question answer, draw out the schematic and we talk grounding. Look at this thread:

https://www.physicsforums.com/showthread.php?t=464271

This touch the surface of current return ( or you want to call it grounding or whatever). Just touching the surface! I am being very long winded because it is that important.