What does 1 ampere equal in terms of microamperes?

One ampere is equivalent to one million microamperes because the metric system is based on powers of ten. The prefix "micro-" denotes one millionth of a unit. Therefore, when converting amperes to microamperes, you multiply the number of amperes by one million (10^6).

In quantitative terms:

1 ampere = 1,000,000 microamperes.

This understanding of the metric system helps in converting between different units of measure correctly, particularly in fields like medical aesthetics where precise measurements can be critical.