Which term means .001 ampere?

Which term means .001 ampere?

• A. Ampere
• B. Microampere
• C. Kiloampere
• D. Milliampere

Answer: (D)

Metric prefixes tell you how big the unit is. The base unit for electric current is the ampere. The prefix milli- means one thousandth (1/1000), so 0.001 ampere equals 1 milliampere. This term is commonly used for small currents in electronics, like signal lines or small devices. The other options describe different magnitudes: one ampere is the base unit, microampere is one millionth of an ampere (0.000001 A), and kiloampere is one thousand amperes (1000 A). So the term for 0.001 ampere is milliampere.

Metric prefixes tell you how big the unit is. The base unit for electric current is the ampere. The prefix milli- means one thousandth (1/1000), so 0.001 ampere equals 1 milliampere. This term is commonly used for small currents in electronics, like signal lines or small devices. The other options describe different magnitudes: one ampere is the base unit, microampere is one millionth of an ampere (0.000001 A), and kiloampere is one thousand amperes (1000 A). So the term for 0.001 ampere is milliampere.