Laser Technician (International Board of Electrologist Certification) IBEC Board Exam

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What is one thousandth of an ampere known as?

Millivolt
Microamp
Milliampere
Deciamp

The correct answer is: Milliampere

One thousandth of an ampere is known as a milliampere. The term "milli" is a metric prefix meaning one thousandth (1/1000), so when applied to amperes, it defines a specific measure of electrical current. This unit is widely used in various electrical and electronic applications to quantify current levels that can be easily handled or measured, as many devices operate in the milliamp range rather than in whole amperes. The use of milliampere is crucial in fields such as medicine, electronics, and laser technology, where precise control of current is necessary, especially in low-power devices. Understanding this terminology is essential for any practitioner in the relevant fields to ensure accurate communication and safe handling of electrical currents.