Explaining DC Open vs Closed Circuits Simplified

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A DC open circuit has a broken loop, preventing current from flowing, while a closed circuit has a complete loop that allows current to circulate. The water theory analogy was attempted but did not effectively convey the concept. The discussion emphasizes the importance of understanding the loop's integrity in defining open versus closed circuits. Visual aids, such as diagrams, can help clarify these differences. The thread concludes with the issue resolved, indicating the explanation was satisfactory.
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I am trying to find a extremely simple answer to explain the difference between a DC open circuit and a closed circuit. I tried to explain it with the water theory but that didn't work so well.
 
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Thank you for the reply this thread is now complete. (not sure why none of the posts showed up but it's solved)
 
eric0524 said:
I am trying to find a extremely simple answer to explain the difference between a DC open circuit and a closed circuit. I tried to explain it with the water theory but that didn't work so well.

Basically think about if there's a full circuit "loop" for current to flow. An open circuit has an open or broken loop. An closed circuit has a closed or complete loop.

http://www.w3.org/2000/08/nba-manual/circuit.gif

Left is open. Right is closed.
 
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