voltmeter/ammeter

[pete g]

hi all, i'am planning on building a power supply. i;am going to use two meters(analog) for volts and amps. my question is, is the voltmeter hooked up before the ammeter or vice versa? i know the ammeter is hooked in series with output while the voltmeter is in parallel but don't know which comes first.

 

[glewis721]

how many Ωs does the ammeter have?
if the resistance is low enough, then it shouldn't matter.
keep in mine that i am making a guess and dont know if i am right or not.
you will need follow-up answers

 

[(*steve*)]

If you place the voltmeter after the ammeter, the voltmeter will read the load voltage.

However, if this is a concern, the ammeter is also going to affect voltage regulation, albeit by a small amount.

glewis, well spotted, that is the concern -- your guess was pretty good this time

 

[pete g]

hi, the ammeter is 2.5k ohms. i ma. i want to scale it read 100ma, 1a. will the res value cause problems, i would guess yes. how can i overcome those problems short of using another meter.