Difference between revisions of "Voltmeter"
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===Meaning=== | ===Meaning=== | ||
[[File:AnalogueVoltmeter.png|right|300px|thumb|A picture showing an analogue [[voltmeter]].]] | [[File:AnalogueVoltmeter.png|right|300px|thumb|A picture showing an analogue [[voltmeter]].]] | ||
| − | A [[voltmeter]] is a measuring device used to [[measure]] the [[Potential Difference]] between two points in a [[circuit]]. | + | A [[voltmeter]] is a measuring device used to [[measure]] the [[Potential Difference|potential difference]] between two points in a [[circuit]]. |
===About Voltmeters=== | ===About Voltmeters=== | ||
Revision as of 13:35, 25 February 2019
Key Stage 3
Meaning
A picture showing an analogue voltmeter.
A voltmeter is a measuring device used to measure the potential difference between two points in a circuit.
About Voltmeters
- Voltmeters are added in parallel to components in a circuit to find the potential difference between two points.
- An ideal voltmeter has infinite resistance because otherwise adding an voltmeter to a circuit would change the Potential Difference between two points.
- Voltmeters can be analogue with a needle pointing to numbers on a dial or it can be digital with a number display.
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| A voltmeter placed in parallel with a bulb. |