ammeter

American  

[am-mee-ter] / ˈæmˌmi tər /

noun

Electricity.

1. an instrument for measuring current in amperes.

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ammeter British  

/ ˈæmˌmiːtə /

noun

1. an instrument for measuring an electric current in amperes

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ammeter Scientific  

/ ăm′mē′tər /

1. An instrument that measures the strength of an electric current, indicating it in amperes. Ammeters typically include a galvanometer; digital ammeters typically include A/D converters as well.

2. Compare ohmmeter voltmeter

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Etymology

Origin of ammeter

First recorded in 1880–85; am(pere) + -meter

Example Sentences

Since the shunt resistance is small, most of the current passes through it, allowing an ammeter to measure currents much greater than those producing a full-scale deflection of the galvanometer.

From Textbooks • Aug. 12, 2015

Figure 21.33 A small shunt resistance R placed in parallel with a galvanometer G produces an ammeter, the full-scale deflection of which depends on the choice of R .

From Textbooks • Aug. 12, 2015

An ammeter is placed in series in the branch of the circuit being measured, so that its resistance adds to that branch.

From Textbooks • Aug. 12, 2015

Chosen to compile the book were Norris and Ross McWhirter, twin grandsons of Scottish Inventor William McWhirter, who built the first in dicating voltmeter and ammeter.

From Time Magazine Archive

Other Tools and Equipment As you go along in electrical work, you'll be adding tools and other equipment, such as a trouble light and maybe an ammeter or voltmeter.

From Electricity for the 4-H Scientist Idaho Agricultural Extension Service Bulletin 396, June, 1962 by Wilson, Eric B.