voltmeter
Sign in to savethumb|Demonstration analog voltmeter
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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.
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Article
6 sectionsContents
- 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.