How many amperes are in 1 milliampere (mA)?

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Multiple Choice

How many amperes are in 1 milliampere (mA)?

Explanation:
Milli- means one thousandth, so a milliampere is one thousandth of an ampere. Therefore 1 mA = 1 × 10^-3 A = 0.001 A. To put it in context, 0.01 A equals 10 mA, and 1 A equals 1000 mA, while 0.0001 A equals 0.1 mA. The key idea is that the prefix milli scales the ampere down by a factor of 1000, giving 0.001 A for 1 mA.

Milli- means one thousandth, so a milliampere is one thousandth of an ampere. Therefore 1 mA = 1 × 10^-3 A = 0.001 A. To put it in context, 0.01 A equals 10 mA, and 1 A equals 1000 mA, while 0.0001 A equals 0.1 mA. The key idea is that the prefix milli scales the ampere down by a factor of 1000, giving 0.001 A for 1 mA.

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