There are different type of circuits, such as parallel and series.

I'm wondering the name / type of the [AC] circuit where there are n number of circuit elements and even if one element is removed (with n-1) remaining, the current still flows?


I have 4 light sockets wired together and it is connected to the mains via single plug.

What type of circuit is necessary so that things work not just when 4 lamps are attached but 3, 2, or even 1 is fine?


A parallel circuit is what you're referring to. In a series circuit, if one connection is broken, the entire circuit is broken.


Imagine a ladder. This is a good representation of a parallel circuit. A lamp on any rung of the ladder will light but it is not required that any one of the rungs have a lamp working in order for the others to work.

  • Brilliant explanation. Thanks! +)) Can I ask you another quick one please? Imagine a DC output that is 12V at say 2 amps. So there is + and - ends. If I have two cables coming of each, connected to two small DC LEDs or motors, will I get 12V to each with 5 amp max? Or will I get 6V to each with 10 amp max? And how does it compare to connecting the two devices (lamp or motor) in series? – Phil Sep 4 '14 at 17:43

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.