What is VOLTMETER? What does VOLTMETER mean? VOLTMETER meaning, definition & explanation
A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit. Analog voltmeters move a pointer across a scale in proportion to the voltage of the circuit; digital voltmeters give a numerical display of voltage by use of an analog to digital converter.
A voltmeter in a circuit diagram is represented by the letter V in a circle.
Voltmeters are made in a wide range of styles. Instruments permanently mounted in a panel are used to monitor generators or other fixed apparatus. Portable instruments, usually equipped to also measure current and resistance in the form of a multimeter, are standard test instruments used in electrical and electronics work. Any measurement that can be converted to a voltage can be displayed on a meter that is suitably calibrated; for example, pressure, temperature, flow or level in a chemical process plant.
General purpose analog voltmeters may have an accuracy of a few percent of full scale, and are used with voltages from a fraction of a volt to several thousand volts. Digital meters can be made with high accuracy, typically better than 1%. Specially calibrated test instruments have higher accuracies, with laboratory instruments capable of measuring to accuracies of a few parts per million. Meters using amplifiers can measure tiny voltages of microvolts or less.
Part of the problem of making an accurate voltmeter is that of calibration to check its accuracy. In laboratories, the Weston Cell is used as a standard voltage for precision work. Precision voltage references are available based on electronic circuits.
-
3:52
Amateur Radio and All about Ham Communication
3 years agoWhat is a TRANSMITTER? TRANSMITTER meaning, definition & explanation for Amateurs
3031 -
4:18
Interesting misc, everything IMO
3 years ago $0.36 earnedWhat is MEL'S HOLE? What does MEL'S HOLE mean? MEL'S HOLE meaning, definition & explanation
377 -
LIVE
The Rubin Report
45 minutes agoPiers Morgan Visibly Shocked When Jordan Peterson Said This About Trump
5,313 watching -
LIVE
Benny Johnson
42 minutes ago🚨DOJ Releases Trump Assassination BOUNTY Of $150K to 'Complete The Job' | Feds Trying To KILL Trump
6,267 watching -
1:09:36
Steven Crowder
2 hours ago🔴 How Mug Club Undercover just turned New York Red | LIVE from City Hall
50.9K244 -
26:46
Breaking Points
1 hour ago9/23/24: LIVE AMA!
5.22K2 -
1:26:10
Graham Allen
3 hours ago5 Assassination Teams For Trump?! Diddy Is On Suicide Watch! + Kamala BOMBS On Oprah!
33.6K91 -
LIVE
Caleb Hammer
19 hours agoPink-Haired Freak Makes Me Lose My Mind | Financial Audit
264 watching -
13:36
China Uncensored
1 hour agoPROOF China's Economy is in BIGGER Trouble Than We Thought!
1002 -
LIVE
LFA TV
5 hours agoDEPORT THEM ALL!! | LIVE FROM AMERICA 9.23.24 11am EST
4,175 watching