I got out of some website, probably wiki, that the best place would be at the start of the circuit. This makes sense, otherwise the electricity would be used by the components and could probably lower the component quality or something. No idea what side it starts on...
So my question is: Should the switch be placed at the negative or positive side of a direct powered circuit (in relation to the power source I guess) and why?
So my question is: Should the switch be placed at the negative or positive side of a direct powered circuit (in relation to the power source I guess) and why?
-
It doesn't really matter if you break the positive or negative side however assuming a positive rail driven circuit such as in a car then convention and ease of wiring says the positive rail is switched in a negative ground vehicle (or the negative rail in a positive ground vehicle like an old VW Beetle). You are correct in assuming that the switch has to be nearest to the battery with no components in front of it.
-
Usually the switch is put on the positive side of the circuit (closest to the voltage source) this is usually assumed to be the best way because if the switch if off you do not want potential voltage to be apparent in the circuit when you are working on it.
Hope this helps
Hope this helps