For the case of Ammeter with Shunt resistor, would it be a concern for any reason? I noticed some circuitry, the shunt resistor was the last one connected to the negative terminal of the DC supply source. Thanks.A more important consideration is what effect it will have on the circuit. Ideal ammeters have no resistance, real meters do.
Thank you very much for your reply. It helps me to understand a good reason to do so."Almost all" ammeters have a shunt resistor because you want the resistance of the meter to be as low as possible and practical, close to 0Ω. The shunt resistor could be embedded in the meter itself, for example, in handheld DMM.
For shock hazard protection one may prefer having the meter on the ground side of the power supply.
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