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: An ideal [[ammeter]] has zero [[Electrical Resistance|resistance]] because otherwise adding an [[ammeter]] to a [[circuit]] would change the [[Electrical Current|current]].
: [[Ammeter]]s can be [[Analogue Ammeter|analogue]] with a needle pointing to numbers on a dial or it can be [[Digital Ammeter|digital]] with a number display.
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|[[File:Circuit+Diagram2.png|center|500px]]
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| style="height:20px; width:200px; text-align:center;" |An '''ammeter''' placed in [[Series Circuit|series]] with a [[Electrical Bulb|bulb]].
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