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How is 1 ampere mathematically represented in terms of microamperes?

  1. 1,000 microamperes

  2. 100,000 microamperes

  3. 1 million microamperes

  4. 10 million microamperes

The correct answer is: 1 million microamperes

One ampere is mathematically represented as 1 million microamperes because the prefix "micro-" denotes a factor of one-millionth (1/1,000,000). Therefore, when converting amperes to microamperes, you multiply by 1 million. The relationship can be understood as follows: 1 ampere = 1,000,000 microamperes. So, when considering how many microamperes are in an ampere, it is clear that multiplying by this conversion factor results in the correct answer being 1 million microamperes.