A basic electronics device or instrument used to measure voltage or electrical potential difference between two points in electrical circuits is known as voltmeter there are two types of voltmeters.
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Before starting any electrical or electronics device installations or studying electrical practical we should know about the measurements and its measuring instruments.
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Electrical and electronics instruments n krishna prakash analog instruments an analog device is one in which the output or display is a continuous function of time and bears a constant relation to its input.
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Classification classified based upon the quantity they measure ammeter voltmeter classified according to the current that can be.
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The basic electronics testing equipments under this category include the following.
Unit 9 measuring instruments the voltmeter is designed to be connected directly across the source of power.
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