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Value of volt in ammeter? |
| Answer» An\xa0ammeter\xa0is a\xa0measuring\xa0device used to\xa0measure\xa0the electric current in a circuit. A voltmeter is connected in parallel\xa0with\xa0a device to\xa0measure\xa0its\xa0voltage, while an\xa0ammeter\xa0is connected in series\xa0with\xa0a device to\xa0measure\xa0its current.\xa0The major difference between the\xa0ammeter\xa0and the\xa0voltmeter\xa0is that the\xa0ammeter\xa0measures the flow of current, whereas the\xa0voltmeter\xa0measures the emf or voltage across any two points of the electrical circuit.\xa0For example, an analog voltmeter with a ±3%\xa0accuracy\xa0is set to the 0 to 100-V range. Based on this\xa0accuracy, its pointer can be 3 volts (100 V x 0.03 = 3 V) below or above the true\xa0reading. If the true measured value is, for example, 90.0 V, the meter might\xa0read\xa0between 87 V and 93 V or ± 3.3% of\xa0reading. | |