*Question T5B01:
How many milliamperes is 1.5 amperes?*  

*Correct Answer is  C: 1500 milliamperes*  

### AI Response: (may contain errors)  

To convert amperes to milliamperes, you need to know the relationship between the two units:

- 1 ampere (A) = 1000 milliamperes (mA)

To find out how many milliamperes are in 1.5 amperes, you can use the conversion factor:

$$
1.5 \, \text{A} = 1.5 \times 1000 \, \text{mA} = 1500 \, \text{mA}
$$

### Explanation of the Correct Answer:
- The correct answer is **C: 1500 milliamperes** because when you multiply 1.5 by 1000, you get 1500. This shows the direct conversion from amperes to milliamperes.

### Why the Other Choices are Incorrect:
- **A: 15 milliamperes**: This is incorrect because it represents a much smaller value than 1.5 amperes. 
- **B: 150 milliamperes**: This is also incorrect as it is still too low; it would be equivalent to 0.15 amperes.
- **D: 15,000 milliamperes**: This is incorrect because it represents a value that is 10 times larger than 1.5 amperes.

### Summary:
- To convert from amperes to milliamperes, multiply by 1000.
- The formula is: 
$$
\text{milliamperes} = \text{amperes} \times 1000
$$

This understanding is crucial for handling current measurements in amateur radio and other electrical applications.