- a calibrated instrument for measuring the potential difference between two points.
Origin of voltmeter
Examples from the Web for voltmeter
Historical Examples of voltmeter
The voltmeter cost $7, and the ammeter $10; and the switches and fuses could be had for $5.Electricity for the farm
Frederick Irving Anderson
In fact, a voltmeter is an ammeter which has had its shunt removed or disconnected.
Hence a voltmeter must be placed across a circuit and not in it.
What would happen if a voltmeter were put in series in a line?
This reading is taken from the voltmeter supplied with the plant.Mechanical Devices in the Home
Edith Louise Allen
- an instrument for measuring potential difference or electromotive force
- An instrument used for measuring the difference in voltage between two points in an electric circuit. Voltmeters typically make use of an ammeter that measures current flow across a known resistance inside the voltmeter; direct-current voltages can then be determined by Ohm's law. Digital voltmeters employ A/D converters to provide the numerical value of the voltage displayed. Compare ohmmeter.