One ampere equals

Options

A. `10^(6) mu A`
B. `10^(-6) muA`
C. `10^(-3) mu A`
D. `10A`

Explanation

To solve the question "One ampere equals," we will convert amperes to microamperes using the known conversion factor.

### Step-by-Step Solution:

1. **Understand the Definition of Microampere**:
- We know that 1 microampere (µA) is defined as \(1 \, \mu A = 10^{-6} \, A\) (where A stands for amperes).

2. **Set Up the Conversion**:
- We want to find out how many microamperes are in 1 ampere. We can express this relationship mathematically:
\[ 1 \, A = ? \, \mu A \]

3. **Use the Definition to Convert**:
- Since \(1 \, \mu A = 10^{-6} \, A\), we can rearrange this to find how many microamperes are in 1 ampere:
\[ 1 \, A = \frac{1 \, A}{10^{-6} \, A/\mu A} \]

4. **Calculate the Result**:
- Dividing 1 ampere by \(10^{-6}\) gives:
\[ 1 \, A = 1 \times 10^{6} \, \mu A \]

5. **Conclusion**:
- Therefore, we conclude that:
\[ 1 \, A = 10^{6} \, \mu A \]

### Final Answer:
1 ampere equals \(10^{6}\) microamperes.

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