What is a voltmeter used for?


Quick Answer

A voltmeter is an instrument used to measure the voltage between two points in an electrical circuit. Some voltmeters register direct current while others measure alternating current.

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What is a voltmeter used for?
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Full Answer

There are two basic types of voltmeters: analog and digital, with digital being the more accurate of the two. An analog voltmeter is built with a galvanometer in series with a high resistance and the inter resistance of the voltmeter must be high. A digital voltmeter shows the voltage as numbers.

Voltmeters are used in a variety of different industries. They are common in laboratories and the automotive industry, and home electricians use them every day.

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