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词汇 Volt meter
分类 英语词汇 英语翻译词典
释义

Volt meter

中文百科

电压表 Voltmeter

（重定向自Volt meter）
Demonstration voltmeter
A moving coil galvanometer of the d'Arsonval type. The red wire carries the current to be measured.The restoring spring is shown in green.N and S are the north and south poles of the magnet.

电压表为科学仪器，又称伏特计，常用于电磁学中。电压表是用来测量电压的大小，单位通常为伏特（V）。电压表一般以并联的方式链接至所需量度电压的电路组件之中。电压表的电阻一般很大，以避免使被量度的电压改变。

英语百科

Voltmeter 电压表

（重定向自Volt meter）
Demonstration voltmeter
A moving coil galvanometer of the d'Arsonval type. The red wire carries the current to be measured.The restoring spring is shown in green.N and S are the north and south poles of the magnet.
Two digital voltmeters. Note the 40 microvolt difference between the two measurements, an offset of 34 parts per million.

A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit. Analog voltmeters move a pointer across a scale in proportion to the voltage of the circuit; digital voltmeters give a numerical display of voltage by use of an analog to digital converter.

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