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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.
Measurement & Standards
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| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Voltmeter | is a | instrument used for measuring electric potential difference between two points in an electric circuit | 0.90 | text |
| the Weston cell.The first digital voltmeter was invented | instance of | it must be periodically calibrated against a voltage standard | 0.80 | text |
| produced by Andrew Kay of Non-Linear Systems | instance of | it must be periodically calibrated against a voltage standard | 0.80 | text |
| Voltmeter | related to Amplified voltmeter | The | 0.60 | section |
| Voltmeter | related to Amplified voltmeter | Amplified | 0.60 | section |
| Voltmeter | related to Amplified voltmeter | VTVM | 0.60 | section |
| Voltmeter | related to Amplified voltmeter | These | 0.60 | section |
| Voltmeter | related to Amplified voltmeter | AC | 0.60 | section |
| Voltmeter | related to Amplified voltmeter | Today | 0.60 | section |
| Voltmeter | related to Amplified voltmeter | FET-VM | 0.60 | section |
| Voltmeter | related to Amplified voltmeter | Most VTVMs | 0.60 | section |
| Voltmeter | related to Amplified voltmeter | FET-VMs | 0.60 | section |
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