Silicon, Circuits, and the Digital Revolution
Voltmeters and Ammeters
An ammeter measures current through a circuit element;
-- therefore it must be connected in series with it.
An ammeter should have a much lower resistance than the other elements in the circuit;
A voltmeter measures voltage across a circuit element;
-- therefore it must be connected in parallel with it.
A voltmeter should have a much higher resistance than the element in parallel;
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Last updated March 16, 2000.
© George Watson, Univ. of Delaware, 2000.