voltmeter

thumb|Demonstration analog voltmeter

AI overview

A voltmeter is a device that measures the electrical potential difference (voltage) between two points in an electrical circuit. It's useful because knowing the voltage helps people understand how much electrical energy is available or being used in a device or system.

AI-generated from the Wikipedia summary — may contain errors.

Wikidata facts

Image: CH Capdella, 3 voltímetres.jpg

Show 1 more fact

Commons category: Voltmeters

Sources (4)

via Wikidata · CC0

~8 min read

Article

6 sections

Contents

Schematic symbol
Analog voltmeter
Amplified voltmeter
Digital voltmeter
References
External links

thumb|Demonstration analog voltmeter

A voltmeter is an instrument used for measuring electric potential difference between two points in an electric circuit. It is connected in parallel. It usually has a high resistance so that it takes negligible current from the circuit.