An ammeter is an instrument that measures electric current, usually in units of amperes (or milliamps or microamps when very small currents are involved). Both the magnitude of direct current (DC) and alternating current (AC) can be measured, though...

An instrument used to measure electric current; the unit used is the...

An ammeter is a measuring instrument used to measure the flow of electric current in a circuit. Electric currents are measured in amperes, hence the name. The word "ammeter" is commonly misspelled or mispronounced as "ampmeter" by some. The earliest...

As modern electronic components become smaller and use less power, associated R&D of new material and components require measuring very low currents. Nanoamp ([10.sup.-9]A) measurements and lower are becoming increasingly more common. Measurement of such low-level currents requires careful ammeter selection and use....

In arc welding, the number of amperes (amps) indicates the size and strength of direct current arcs that are electrode negative (DCEN) or electrode positive (DCEP). They also are a measure of balanced wave alternating current (BWAC), conventional unbalanced waves (AC plus a...