Ampere Meter on MachinesXqBNSy

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<p> An&nbsp;ammeter&nbsp;(from&nbsp;Ampere&nbsp;Meter) is a measuring instrument&nbsp;used to measure the curent&nbsp;in a circuit. Electric currents are measured in amperes&nbsp;(A), hence the name. Instruments used to measure smaller currents, in the milliampere or microampere range, are designated as&nbsp;milliammeters&nbsp;or&nbsp;microammeters. Early ammeters were laboratory instruments which relied on the Earth's magnetic field for operation. By the late 19th century, improved instruments were designed which could be mounted in any position and allowed accurate measurements in electric power system.&nbsp;It is generally represented by letter 'A' in a circle. </p> <p> <img src="http://i.bosscdn.com/product/72/19/9e/66794e87ea4d15aaef2dc640db.jpg" title="ampere meter " alt="ampere meter " /> </p>